◆

Ford Mustang repairs by problem area

Engine (22%)

Transmission and Drivetrain (13%)

Brakes and Traction Control (5%)

Suspension and Steering (13%)

Electrical and Air Conditioning (27%)

Paint, Rust, Leaks, Rattles, and Trim (14%)

Other (4%)

Select a problem area

Show all problems

Need advice about a specific Ford Mustang problem?

Chart based on 1492 repairs.

See TSBs and recalls for the Ford Mustang.

Ford Mustang engine repair cost distribution

$2500+ (1%)

$1000 - $2499 (6%)

$500 - $999 (11%)

$100 - $499 (36%)

< $100 (46%)

See most expensive repairs

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 291 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

10000 mi

US $1500

Rodent damage to intake manifold, causing intake valve faIlure

Return to top

4000 mi	Check engine light came on at approx. 4000 miles and stayed on for about a week. Reason from FordPass App was "engine control system has detected the intake manifold runner control valve is not operating as expected and requires service" Car did go into a "limp mode" until the light cleared. No local Ford dealer could see the car for at least a month after the light came on, and light turned off after around a week. No diagnostic was successful because all Ford dealers refused to look at the car once the check engine light turned off.
5000 mi	Check engine light illuminated at approx 5000 miles for two codes per the FordPass app. Those were "engine control system has detected the intake manifold runner control valve is not operating as expected and requires service" and "the powertrain control system has detected that it is unable to fully open or close the upper active grille shutters". This is the 2nd time that the 1st issue tripped a check engine light (from Aug 2021). Both codes cleared within 3 or so days. Car did not appear to go into a "limp mode" this time. Ford dealers had no availability to look at the car when the check engine light was on and refused to see it after the light was off.
8855 mi	Check engine light on P2015. Performed tests and inspected the intake manifold and wiring and no damage found. Testing indicated it was an intermittent concern. Reassembled and road tested and code went away. No actual repair was performed that aware of. This is the 3rd time a check engine light has come on for the intake manifold runner control, but the 1st time it was actually looked at while the light was on.

Return to top

1100 mi

Oil pan gasket was leaking. Dealer dropped the front subframe, removed the pan, re-applied the sealant, installed a new gasket, and re-assembled.

2000 mi

Engine tick when warming up in 5.0 engine. This is a well known issue in Mustang GT engine since 2011. Was told this is normal. I wish I knew about this before I bought the car.

Return to top

77 mi

Misfire on Cyl 4 caused by Broken Exhaust Valve spring Replaced spring, oil & filter change, new plugs, new gaskets.

Return to top

2500 mi

US $100

Rats chewed two of the coil pack wires and car went into limp mode, running on two cylinders. It was not covered under warranty. But, my comprehensive insurance covered the $1000 bill beyond my deductible. Really fed up with the solutions to keep critters from eating the soy based wire looms.

Return to top

11300 mi	The engine that was replaced had been using a quart of oil every 900 miles. The new one has used none in its first 1,200 miles.
13000 mi	Hole in #8. Ford voided the warranty because I bought after market JLT CAI with there tune and it burned a hole in #8. I am rebuilding the motor on my own. The dealer wanted $20000 for a new motor.
14000 mi	Check engine light. P0430 cat code. said come come later. still have a problem
14000 mi US $166	code p0430 cat code. dealer says coolent leak in upper rad hose And Tee connector. $790. $150 for the diag.I said no to the repair. my cost of the parts are $85. They did not fix the cats.
15000 mi US $580	codes cleared. could not find the leak

Return to top

15000 mi

Engine needed to be replaced. Original issue as a CEL and a miss. Investigation found # 7 piston had (lightly) been contacting the head. Bore was damaged.

Return to top

10521 mi

PCM reported misfire on cylinder 8 (P0300, P0316). There is a TSB for this error, so the manifold inlet assembly was replaced, along with 6 nuts and 10 "o" rings.

20000 mi

Head gasket replacement on passenger side of vehicle

Return to top

2000 mi

AC quit while parked on a backed up highway for nearly an hour at 114 degrees. The intake air temp and head temperature were very high. Cooling fans didn't sound like they were running. Once traffic started moving, engine temp spiked, then rapidly cooled down. Appointment made with dealer who found a ground wire had pulled out of the fan circuit, causing both fans to fail to engage.

Return to top

8000 mi

Oil pressure sending unit had a small leak. Found during oil change.

Return to top

7220 mi

Crack in #3 cylinder and stretched timing belt. Full engine replacement under warranty. Parts took about five weeks to arrive and car was in the shop about 40 days

Return to top

29000 mi

US $30

Evap emissions system valve under hood failed and was replaced.

53000 mi

US $100

Canister purge valve under the hood replacement

Return to top

22300 mi

Timing chain cover gasket was leaking. Gasket replaced

Return to top

52000 mi

US $1000

Repaired carbon buildup on throttle bodies

15000 mi

Resonator rattled

Return to top

4910 mi

US $1650

Car began running rough - no power. Took it to the shop, they determined the turbo was blowing oil into the down pipe.

Return to top

8900 mi

Having problems adding gas. Nozzle keeps popping out and you have to keep adjusting it constantly to get gas in. They said nothing was wrong with it. It's very irritating though.

5000 mi	Broken exhaust baffle. Repaired under warranty.
38000 mi US $150	Replace mass air sensor. Replace hose to air filter. Problem caused by incorrect installation of an aftermarket cold air intake by me.

Return to top

8060 mi

Check engine light. Gas vapour leak. Reset light, problem with capless fuel filler flap. Has given messages before, but, seems to be ok now. NOTE: This problem occurs at least once a year! Would prefer a real gas cap.

Return to top

21500 mi

US $120

O2 Sensor failed

Return to top

	Threw a P219A code ... Bank 1 air/fuel ratio imbalance.
7000 mi US $150	Right side O2 sensor failed. Replaced both (left and right) O2 sensors.

12500 mi

Check engine light staying on. Second time. First time was a year ago. Different code this time. Just reset it.

Return to top

52000 mi

US $1000

Evap system leak - smoke test and replaced melted hose near exhaust.

46000 mi

US $110

Car was running very rich (indicated air/fuel ratio of ~10:1 - 12:1 at idle and cruise). No MIL present. P0053 HOS2 Heater Resistance Bank 1 Sensor 1 P0135 O2 Sensor Heater Circuit Bank 1 Sensor 1 P2195 O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1 P2626 O2 Sensor Pumping Current Trim Circuit/Open Bank 1 Sensor 1 STFT on Bank 1 was nearly 50%. LTFT on Bank 1 remained a reasonable ~3-5%. Confirmed wiring/harness integrity. Backprobed O2 B1S1 with lab scope, and confirmed erratic current and heater failure. Replaced defective sensor. Cleared pending codes, completed two drive cycles and confirmed that permanent codes cleared themselves.

Return to top

92000 mi

US $426

Water pump replacement.

Return to top

54000 mi	Replace engine block. Bad rod bearing
70000 mi US $115	Intermittent check engine light with no other noticeable symptoms.
82000 mi US $550	Intermittent check engine light for 6 months. Finally determined it was both oxygen sensors. Both sensors replaced.

19300 mi

Water pump failed and was replaced under warranty

39000 mi

US $30

Replaced coolant hose that was missing a check valve from the factory per Ford TSB.

Return to top

18000 mi

US $15

Flywheel cut and clutch replaced. Clutch adjusted.

Return to top

14200 mi

Trouble code PO420. Replaced catalytic converter

Return to top

40300 mi C $475	Check engine light came on. Scanned and found faulty purge valve. Replaced valve and cleaned injectors.
40500 mi	Check engine light reappeared- took it back to dealer replaced purge valve again. light reappears a few weeks later and the dealer claims another sensor has failed. Now they want another $500 to fix this, I don't trust Heritage Ford now.

Return to top

8000 mi

TracKey posing problem with emmissions testing and occasional misfiring. Brought to local Ford Dealer and they said the TracKey voided the warranty. Going back and forth with Ford about the key and trying to reestablish warranty.

Return to top

16500 mi	Exhaust was leaking. Clamps were loose and pipes were not properly aligned
79000 mi US $550	Water pump was making grinding noises since the morning. While driving back home this noise became louder and suddenly stopped. Steam started to show under the hood indicating a major leak. Car was towed to a dealership. Pump and top radiator hose was replaced.

Return to top

114800 mi

Evap system leak

5000 mi

Made adjustment to cam sensor

2000 mi

Crank Position Sensor Replaced. 2 ECU updates that didn't work before installation of the CPS.

Return to top

25900 mi

US $400

Defective, leaky waterpump. Replaced with correct aftermarket unit and updated OEM overflow hose. Flush and refill. Dealer could not look at it on a Saturday but Ford eventually reimbursed total cost ($400).

Return to top

5000 mi

Leak in heater hose. Dealer didn't stock part. Took 4 days to locate a hose. This is unsatisfactory!

Return to top

30200 mi

US $85

Replaced failed bank 1 oxygen sensor

5240 mi	Wire in harness that supports camshaft timing came loose causing engine misfires and severe performance degradation. Took a lot of time to find the root cause of problem. Several hours of electrical and computer tests.
12400 mi	Pulley system and serpentine belt needed to be replaced after original pulley system failed. Parts ordered and replaced under warranty.

Return to top

57040 mi

C $30

Car went into "limp mode" on on-ramp of highway while travelling at 30-35 mph. Was about to call roadside assistance, but restarted the car and it started. It did not throw a diagnostic code. Did some research and: replaced engine air filter, cleaned MAF sensor and throttle body with MAF sensor cleaner. Has not re-occurred in 30 days so far.

22200 mi

Knock-like sound when engine is cold coming from accessory area

35000 mi US $227	Oxygen sensor went bad.
53000 mi US $1100	2 Bad O2 Sensors and had all 8 spark plugs replaced.

69000 mi

US $8000

Engine developed rod knock. Requires full bottom-end rebuild.

Return to top

32000 mi

I noticed water pump started leaking on arrival at the dealership for maintenance, water pump was replaced under warranty.

70000 mi

US $700

Replaced water pump due to leak.

19000 mi	Fuel system throwing a CEL. Needed both fuel sending units in the gas tank replaced. Gas gauge reads inaccurately.
46000 mi US $185	Exhaust leaking water. I think the mufflers are rusted out.

25200 mi

Water pump failed - replaced under warranty by the dealer

7000 mi

A connecting rod bolt came loose and failed at approximately 7000 miles. The motor was replaced under warranty. Repeat trips back were needed to clear a misfire code cause by not resetting the crankshaft position sensor.

Return to top

30000 mi

Engine tick got progressively worse as time went on. For replaced the engine with a new remanufactured engine due to the time involved in not being able to find the tick in a timely manner. They replaced the water pump, belt, pulleys crank 2

79116 mi

US $426

Replace water pump

Return to top

9000 mi

Cooling Fan fuse blew and caused the car to overheat. Car had to be towed to the dealer.

41540 mi

C $800

One catalytic converter was replaced. Most of the time in the shop was waiting for the part.

4400 mi	Ticking under light throttle
6000 mi	Took another try at fixing the ticking, but couldn't get it to make the sound while in the shop
30000 mi	Ticking under light throttle never went away, and Ford basically refused to look at it anymore. Even though their TSB fixed it temporarily, they wouldn't look at that area again.

12200 mi

Water pump was replaced

28000 mi

Pulley displayed signs of future failure

20000 mi	Check engine light with code P0446 - here's what the dealer paperwork said: Open circuit at the cannister purge solenoid verified light. IDS, P0446 in memory. PP test found VPWR circuit at the cannister vent solenoid corroded in two pieces."
25000 mi	I had an intermittent ticking noise coming from the front passenger side of the motor, which ended up being diagnosed as a bad water pump. There is a TSB 12-3-1 out there for this issue. Parts were ordered and arrived the next day.
41000 mi US $45	TSB for a Powertrain Control Module (PCM) update fixed an issue where Oil Life Monitor wouldn't let you go more than 5,000 miles between oil changes. Initially had to pay, but dealer got Ford to issue a refund.
51700 mi US $150	The engine was exhibiting some bizarre, random starting issues - weak starts followed by normal ones, then a complete failure to start without a jump (heard only the starter whirring). Diagnosis was a software update to the PCM was needed.
146000 mi US $119	Replaced downstream bank 1 O2 sensor

Return to top

45000 mi

Check Engine Light related to cam timing on passenger side. Problem ultimately caused by head gasket debris in oiling passages of cylinder head, causing failure of valve timing solenoid.

2000 mi	PCM reflash for hard start/rough hot weather idle
4000 mi	VCT solenoid gasket leaking oil. Gasket replaced under warranty.

7000 mi	Car went into Fail Safe for no apparent reason.Tech checked for Hydrolock but that was not the cause.Did update to PCM and advised to wait & see if problem recurs. 2 days later check eng lite came on- now in to replace catalytic converter.
11000 mi	Replace timing chain

5000 mi

Automatic transmission rough down shifts when approaching stop signal.No repair performed. Off throttle downshifting at high speeds. (70mph) Automatic transmission rough downshifting at low speeds. NO repairs completed dealer states this is normal for car. Off throttle downshifts, dealer could not replicate problem. No repairs made.

Return to top

86000 mi

US $600

Water pump leaked out nearly all coolant and it and some hoses had to be replaced.

5600 mi

Engine had a cold-start tapping noise due to under-oiled cam cap on drivers side camshaft. Cam Caps were removed and cut with a precision tool. Tapping noise subsided to be replaced with a warm-start squealing sound yet to be diagnosed.

Return to top

16000 mi

Tap in motor

63500 mi	Dealership replaced Throttle Body per recall.
235000 mi US $1835	valve cover gaskets and tune-up, belt and tensioner and coolant flush

96000 mi

US $600

Evap system

12400 mi

The fuel guage sensor had 'tripped' twice causing the 'service engine soonest' light to come on.

50000 mi

US $100

Water pump failed

63000 mi

Electronic Throttle body (Ford Service Bulletin - free repair)

Return to top

46000 mi

US $770

Cooling fan resistor blew, burning out the connector. No replacement connectors, so had to replace entire wiring harness.

4236 mi

Check engine light came on and it was catalytic converter failed. Dealer replace no cost under warranty

Return to top

9920 mi	TSB older one had solution
10520 mi	tsb for oil monitor cpu

149500 mi

US $150

Radiator fan stopped working, replaced the radiator fan unit.

Return to top

105000 mi

US $45

Replaced water pump as it had small leak and over 100k miles

58000 mi

Recall electronic throttle body.

99500 mi

US $380

Replaced leaking water pump

58383 mi

Camshaft tick noise when cold started, subsides when engine warms up ~4 minutes. Ford TSB# 12-1-17 under Powertrain warranty. Repair reduces noise 80% but still there.

14000 mi

Engine tick on cold start. Slots ground to allow oil to reach area quicker.

Return to top

48400 mi

Leaky water pump

Return to top

89000 mi

US $230

The throttle position sensor started to malfunction.

4000 mi

Car is hard to start after stalling out in lst gear after waiting for light to change.

91000 mi

US $30

oil change

40000 mi

US $50

Check engine light came on. They replaced an oxygen sensor. Would have cost $280, but I used the extended warranty and only paid $50.

62620 mi

C $73

Downstream Oxygen sensor failed. Replaced with a new one.

Return to top

3000 mi

Tank overflowed while filling it (2nd time!) and it triggered the check engine soon light. It threw code #P0451 for evaporative system malfunction. 05-09 Mustangs have had similar problems as the automatic shut-off doesn't always work.

5000 mi

oil gauge on computer showed 4 percent life remaining; reset computer

24200 mi

US $300

Car hesistated upon start. Fuel system cleaned

93 mi	Car did not start. The instrument panel was faulty (not communicating) and replaced. Dealer replaced free of charge by taking the part from an other new car to avoid downtime (ford stock was empty; 10-15 day delivery time)
12400 mi	I brought the car in to fix a rattle coming from the dashboard area at 1200 to 1700rpm while the engine is under load. The root cause was a loose fuel line clip. Fixing the clip solved the problem.

10000 mi

Car was not running well; seemed to want to stall out after stopping at red lights, etc. After a few days the "wrench light" on the control panel came on. Throttle control module replaced and all is well.

Return to top

4340 mi C $60	Felt like the engine was backfiring. Reported muffler missing baffle or something. They said nothing wrong, but I asked for a mechanic to listen. They heard ticking noise and said needed new muffler on order.
14260 mi C $1600	Clutch replaced.

88000 mi US $100	Replaced thermostat that was stuck open.
102000 mi US $1033	Clutch and flywheel

91000 mi US $470	Thermostat housing cracked, it was replaced and hoses were replaced
106000 mi US $150	O2 sensors failed, I have yet to replace them due to not having enough time. I do my repairs myself.
111000 mi US $700	O2 sensors replaced but the motor is still throwing the same code. I have not had time to take it back in yet.

Return to top

3000 mi	Belt chirp on startup (intermittent) along with bearing sound during running. I was told they heard nothing, that I was "over protective" of car, and they miswrote the work order. I believe idler pulley has faulty bearing. Time will tell.
13000 mi	Chirp & bearing noise from 3/2010 became worse. It was the crankshaft pulley: rubber center was coming apart - replaced. The fan motor was also replaced as having a bad bearing.

4000 mi	Fuel pump replacement. Car stalling out at random times.
12000 mi	replace vacuum module

89900 mi

C $300

Emmisions code

Return to top

61000 mi

US $200

Replaced whining idler pulley

52000 mi

Smell raw gasoline at times. fuel system checked but nothing was found.

30000 mi

US $50

Gas tank neck replaced. Factory seal faulty, causing a check engine light. No noticeable difference in vehicle besides check engine.

20200 mi

Failed Throttle body

Return to top

34400 mi	Water pump leaking. Pump replaced
35200 mi US $100	Thermostat replaced. Car ran cold.
58000 mi US $118	cracked vacuum lines

Return to top

1000 mi	Engine tapping. They won't do anything about it until there are 5,000 miles on the car.
3000 mi	Replaced all lifters in the engine

Return to top

486 mi

Warranty replaced Cam position sensor

Return to top

44000 mi

US $1600

Clutch started slipping and needed replacement. Since trans was out of the car I opted to put in a new short throw shifter which was $400 of the total $1600 bill.

Return to top

100000 mi

US $70

Replaced original plugs. Waited WAY too long!! 5 of 8 broke off in the head, but borrowed the removal tool from Ford. Runs awesome with the replaced oem plugs. Overall, this motor runs stronger now than when it was new!!!

16000 mi

Ignition lock cylinder coming out of steering column. Ignition lock cylinder replaced.

Return to top

106000 mi

US $6

Exhaust rattle. Found a broken exhaust clamp on the passenger side muffler. Adjusted exhaust and replaced with new clamp to resolve rattle.

3000 mi

Engine tickknock noise between 1500-2000 rpm when car under load heard in 2nd-4th gears. Svce Mgr and Ford Engineer say 'normal' engine noise. Nothing done! 2 Tech Service Bulletins say lash adjuster problem but not diagnosed. 4.6L 3V engine questionable

27000 mi	A faulty oxygen sensor on the driver's side exhaust pipe was causing a check engine light to turn on. The Ford dealership replaced it at no charge under warranty.
77000 mi US $152	Replace cooling fan with new unit

13000 mi

Ignition lock cylinder replaced

24000 mi	Fixed Fuel Gauge
27000 mi	2nd Round.. Actually fixed the Gauge

149700 mi US $750	replaced the original clutch after 136,000 miles.Had my mechanic install a new Spec 2 clutch and throwout bearing.car drives better than new.
154000 mi US $160	Replaced all 4 O-2 sensors
194000 mi US $602	Had 8 new spark plugs replaced

Return to top

106000 mi

US $150

belt whine

53320 mi

C $294

Whining noise from the engine compartment. Dealer found the idler pulley bearing defective and replaced the idler pulley. The whining stopped.

Return to top

56200 mi

US $22

low engine temp replaced thermostat

61380 mi

C $1200

Clutch replaced for second time. Was replaced by previous owner as well. Repair shop and online info seemed to indicate that the stock clutch was problematic and best replaced with aftermarket clutch and flywheel.

22000 mi US $590	Harmonic balancer
24000 mi US $400	Thermostat housing leak and also needed thermostat replacement. Ordered metal housing to replace the plastic OEM

Return to top

25000 mi

Catalytic Converter failed on passenger side

Return to top

1860 mi	1-Radiator hose rubbing against power steering pump pulley (hose replaced). 2-Driver side power window does not operate properly with top up and rear window open (window hits top and bounces back (several visits, problem still ongoing).
35340 mi C $700	OEM clutch lining started slipping, replaced with McLeod RXT clutch and flywheel at 57k (normal for weak OEM unit).

Return to top

49000 mi

US $200

Car would not accept fuel. Evap canister valve, fuel tank, and fuel pumps replaced under extended warranty.

Return to top

158000 mi US $1246	Engine running rough. Mass airflow sensor failed diagnostics. Replaced MAF sensor and problem solved.
198000 mi US $700	Cat went into limp mode. Dealer reported ECM was bad. ECM is obsolete, no longer produced by Ford. Dealer unable to repair. Purchased remanufactured ECM online and replaced.

11160 mi

C $300

Noise with belt, replaced pulley

32000 mi

US $250

Replaced O2 sensor

Return to top

3800 mi

Bad spark plug and ignition coil caused rough idle. New coil and spark plug. Repaired under warranty.

8000 mi

Added Ford Racing Bullitt Intake and Tune. Made car and tranny much more responsive ,removed lag in off line power ,very nice.

122000 mi

US $600

1st Tune up, spark plugs and coil on plug boot. This is a super reliable car. The spark plugs lasted longer than expected.

Return to top

131000 mi US $425	Replaced heater core. Removed dash and replaced damper door actuators as preventive maintenance.
141000 mi US $400	Cracked thermostat housing.
160000 mi US $575	Rough idle and "surge" when load is placed on engine. Throttle body VERY dirty. Removed and cleaned. Cleaned MAF sensor, replaced belt and tensioner (worn), and did Sea Foam aerosol intake cleaning. Replaced fuel filter. Combined effort significantly smoothed idle, reduced surge, and significantly improved engine performance.

117000 mi

Unknown engine rattle, popping and hissing after alternator replacement. Not sure what's wrong at the moment.

81000 mi US $250	Thermostat needed to be replaced
98000 mi US $350	The thermostat started leaking again requiring replacement for the second time.

70200 mi US $390	Steering at idle made moaning sounds once warmed up. Thought it was a leak. But, could be moisture and air getting sucked in to the pump. Replaced Power Steering line and flushed power steering fluid.
77000 mi US $849	And, the thermostat housing had a massive crack in it. Being plastic and the extreme cold here in CO.

74582 mi US $280	Replaced pulley-crankshaft and seals.
89214 mi US $700	Replaced water pump, coolant sensor,and thermostat/housing.

66340 mi	Car dumped all fluids on highway was found to be cracked thermostat lower intake housing (composite plastic) is a known TSB for model. Dealer repaired under 30 day used car warranty happened 1 week after purchase.
70140 mi C $160	Thermostat housing leaking/cracked
99200 mi C $260	Harmonic balancer. The vehicle was rough idle and loss of power in all driving ranges. It was thought initially it was a slipping belt by the loud noise emitted from that area. Some silicone spray quieted it down initially but got worse over several days and the lube spray did nothing to abate it. Then upon further inspection while running the harmonic balancer was found to be wobbly. Upon forum checking was a known problem. Removal was simple once the correct longer bolt secured to pull the old one off and install the new one. Since has been trouble free. Takes about 2 hours or so to complete all in 1 shot with the tools and part on hand. So figure 2.5-3.5 hours to complete repair. You do not have to remove the rad. Also a new belt was installed at the same time. Total cost for parts was about 250-300 dollars CDN.

66000 mi

US $180

water pump belt tensioner pulley failed

Return to top

7440 mi

Replacement of serpentine belt pulley with bad bearing Serpentine belt idler pulley replaced

13020 mi

Engine makes a ticking noise, at all temperatures, loudest at 1200 RPM. Engine knock occurring during light-load upshifts at 3000-4000RPM, also intermittently under load at 5000RPM and above. Left front O2 sensor was found to have a slow response and was replaced under warranty. Second, more detailed examination of engine ticking noise at 1200RPM. Noise found to be loudest at intake runner for cyl. #4. Other likely sources eliminated. (Bellhousing, injectors, cam covers, etc.) Was told noise is "normal".

Return to top

83000 mi

Cam phasers, cylinder heads, valve lifters.

Return to top

57500 mi

US $50

New thermostat needed

Return to top

67000 mi US $1300	Rear main seal was leaking oil onto garage floor
85000 mi US $360	Thermostat housing leaking
95000 mi US $967	Replaced harmonic balancer

97500 mi

US $200

Loose parts in original catalytic converter. Mechanic cut it out and replaced it with a universal cat.

Return to top

11000 mi	Fuel pump assembly replaced under warranty per TSB. Hesitation during acceleration after long drive.
27000 mi US $12	VCT Sensor Grommet/Seal failed allowing small oil leak from the driver-side valve cover. Replaced grommet myself for $12.

52000 mi

US $820

waterpump leak manifold water leak - very small

50000 mi

Replaced factory spark plugs with Champions.

16000 mi

Hesitation after long trip on the highway.

102000 mi

US $600

Replaced clutch, thowout bearing and flywheel. The disc wore out prematurely, resulting in hot spots on both the flywheel and pressure plate. It was an aftermarket item that had failed. The root cause is still unknown. McLeod (clutch manufacturer) and Clutch Masters (slave cylinder manufacture) both said the other product caused the failure.

27000 mi

Fuel pump failed and was replaced.

Return to top

11000 mi US $100	Canister vent value was replaced.
17000 mi US $100	Replaced throttle body.
18000 mi	Engine light came on. The dealer checked it out and could not find anything wrong. The reset the warning light. They said that they know the Mustang GT has a problem in the software that they are working on to fix.Problem did not reoccur

89121 mi

US $845

Drive by wire throttle body replaced

106000 mi US $40	Replaced cam position sensors.
124000 mi US $231	Oil filter adapter leak, and oil sensor gasket.
225000 mi US $168	Replaced all 8 ignition coils after #4 failed.
130000 mi US $378	Leaking oil pan gasket, and timing chain cover gasket. Sensor behind timing chain cover was also replaced.

Return to top

54000 mi US $240	Evaporative emissions solenoid replaced.
84500 mi US $190	Cracked thermostat housing

77000 mi US $15	The coolant overflow tank cap was not put on tight by Grease Monkey and I was running dry on coolant but not overheating. But, my MPG was really poor due to MAF sensor being thrown off by low coolant. Filled up and monitored...fine now.
78000 mi US $166	Coolant puking out overflow tank cap. The cap was not holding any pressure and the thermostat was sticking. The shop replaced the thermostat and flushed/bled the coolant system and gave me a new cap.
81000 mi US $150	This was related to the previous issue with the coolant overflow tank. The threads on the reservoir tank were broken. Thus, it couldn't hold pressure. They replaced the tank and flushed and replaced the coolant.
85300 mi US $310	Yet another coolant issue. But, this was pretty typical for a ten year old V6 Mustang. The thermostat housing cracked and was leaking. It was fixed by my trusted shop and returned to me within the same day.

129000 mi

US $400

Thermostat housing cracked, lost coolant

Return to top

5286 mi	Fuel filler neck backs up during fueling. Design problem with filler neck. No repair solution. Fueling slower, with nozzle on the first detent, seems to solve the problem.
32889 mi	Engine floods and runs rough when started in very cold weather (below zero). Warranty recalibrate of fuel PCM. Replaced rattly driver side mirror. Replaced radio head unit that refused to release my CD's. All warranty.
53466 mi	Engine still has difficulty starting when very cold.
55000 mi	Occasional cold-start rough idle for as long as 30 seconds.
90000 mi US $12	Thermostat failed in shut position. Replaced thermostat.
154000 mi US $400	Radiator leaking between plastic tank and aluminum core.

24000 mi

US $70

Check engine light- emission control fault code. Shop could not find a problem, reset computer and suggested it could be a failing oxygen sensor

Return to top

47000 mi US $65	Engine hesitation at highway cruising speeds. Very occasional, but persistant. No codes set, no other symptoms.
56000 mi	Loose gas cap light came on. Gas cap not loose. Dealer cleaned cap and filler area. No charge.

37820 mi

Free up solenoid on fuel tank vent would not open to allow gas tank to vent when filling.

18000 mi

US $200

REPLACED ALL PLUGS, WITHOUT BREAKING, WITH SPECIAL SOCKET, REPLACED COILS DUE TO HI-SPEED MISSING DUE TO CRACKED PLUG WHEN MADE IN 2006 BY FORD ADDED #6 GROUND CABLE FROM BATTERY TO ENGINE AS PREVENTIVE CARE TO AVOID ECM DAMAGE. ADDED DRIVERS SIDE OIL SEPARATOR FROM VALVE COVER TO ENGINE AS PREVENTIVE FOR INTAKE BUILDUP

121300 mi US $100	Misfire was the problem this time on cylinder 6. It was the spark plug. Back in October we had problems with misfire and running lean and that time it was the injector. So we first replaced the injector before we replaced the spark plug.
167000 mi	It is showing a code for camshaft position sensor, but most times it is an alternator problem, and with this car I have had check charging system up for over 2 years, but it has started running rough off and on now.

Return to top

42000 mi US $211	Throttle body service. After a long trip of steady driving when you stop and start again it hesitated a bit. Finally died while looking for a place to park. Got it started but the "wrench light" in the dash came on.
54300 mi US $330	a housing on the front of the intake manifold started leaking water
79900 mi US $300	Computer Ground and Throttle Body
83000 mi US $655	New Throttle Body
86000 mi US $284	Replaced EGR Valve

60000 mi

US $500

cracked thermostat housing, water pump failing.

Return to top

106000 mi

US $550

Fuel delivery problem

Return to top

46000 mi

US $500

Rear differential service.

181961 mi

US $570

Head gasket leak successfully sealed with K-Seal. Replaced thermostat. Camera viewing of cylinders to verify presence of coolant in combustion chambers in two cylinders.

176000 mi

US $955

Variable cam timing problem. Oil Control Solenoids, or phasers, or cam tensioner. No codes thrown, symptoms very mild, couldn't narrow it down.

94000 mi

US $400

VCT Sensor 2

11780 mi

Car would not idle smoothly anymore.

24800 mi

C $41

Faulty fuel cap causing PO456 check engine light

9000 mi

Throttle cut out when accelerating - intermittent. Fuel pumps replaced.

Return to top

20000 mi	Fuel pump and fuel level sensor replaced under warranty.
81000 mi US $497	Replaced radiator. Radiator had small leak at join between plastic side and aluminum core. Seepage, really. Fluid loss was about 1 qt per 3000 miles.

Return to top

28000 mi US $50	Fuel tank replaced to correct complaint that gas pump shuts off repeatedly while fueling even at very slow pace.
49000 mi US $180	Car would lurch and make noise with loss of power for a brief moment and would then regain and be fine. Never stalled and had no loss of control. Problem was determined to be throttle sensor being dirty. Removed & cleaned throttle body & re-pgm.
58000 mi US $50	Thermostat housing leak. Coolant had been leaking all over and was low. Replaced seal and housing parts. Drained coolant and replaced coolant (after a flush-maint item).
88300 mi	Cracked Serpentine belt.
90000 mi US $70	Replaced serpentine belt. Replaced radiator reserve cap. Car was running hot while idling. (Maint. work also elected: Decided to do coolant flush which was previously recommended and would help maintain cooler vehicle).
105600 mi	Check Engine light came on. Examination revealed small leak in fuel line. Did not fix due to cost and cel reset itself. Issue only occurred once.

135000 mi US $200	Car began to overheat and leaked coolant. Found that the water pump was leaking through the bearing weep hole. Replaced water pump, thermostat housing and accessory drive belt.
148800 mi US $250	Replaced water pump and thermostat housing.
167000 mi US $1200	Replaced thermostat and housing

177000 mi

It had an oil leak, sipped some coolant and had an occasional undiagnosed squeal from the engine compartment.

55722 mi

US $502

Check Engine light came on saying Short in Transmission Shift Solenoid. Dealer checked it and determined that there was a coolant leak around the thermostat housing that was causing it to throw a false code.

87000 mi US $58	Replaced cooling manifold. Easy repair, houses the temp sensor.
104000 mi US $100	Thermostat housing is plastic, glued together at the factory. Split and blew apart.
104000 mi US $75	Coolant reservoir is a 2 piece plastic part, glued together at the factory. Seal broke resulting in loss of coolant. Replaced the tank. Coolant reservoir is a 2 piece plastic part, glued together at the factory. Seal broke resulting in loss of coolant. Replaced the tank.

89000 mi

US $18

engine light warning, was bad gasket on fuel filler cap. Replaced cap all ok

Return to top

47000 mi

US $80

Vibration at 1200rpm TSB performed by Ford

Return to top

49000 mi

US $450

Check engine light was coming on. Replaced failed bank two HEGO sensor, reset PCM. Also replaced fuel filter and regular oil change.

31000 mi	Throttle position Sensor failure. TPS replaced.
54000 mi US $300	Leaking coolant due to a cracked thermostat housing.

78200 mi	Right muffler pipe detached and rotted where the new dual exhaust system was put on. It needed to be re-welded.
96000 mi US $3200	replaced: LT valve cvr, valve cvr gasket, Lt timing case, tensioner, seal assembly, water pump/gasket, R&I oil pan, debris from engine/pan, flush coolant, antifreeze
96000 mi	An "O" ring broke from a previous repair in September. The shop repaired the ring and did another oil change. The car had less than 50 miles between oil changes, but it needed to be done. She is running great at this time.
100000 mi US $250	R/S of Pypes dual exhaust pipe shifted to the right. Mechanic re-positioned, but the clamp cannot be tightened any further. Re-positioned CAI for rattle.

Return to top

22000 mi

US $300

Replaced leaking water pump.

Return to top

62000 mi

US $8000

Motor threw a rod. Since it is somewhat a "rare" model, I opted to have the motor replaced or rebuilt just like the factory motor. It is not a common motor so they couldn't find a replacement that they would warranty, so they sent the motor to Jasper Engines to be rebuilt. It has come back, but I still not have it back yet. I expect to have it in this week. The oil level had dropped too low and that is why it threw a rod. No leaks, unclear how the oil level got too low. Sometimes when I started it up, it would smoke initially, then it seemed fine. I'm having them install a real oil pressure gauge as well.

Return to top

50000 mi

US $225

Faulty tensioner/pulley caused shredding of serpentine belt. Replaced pulley and several belts.

Return to top

68819 mi

C $425

mechanic replaced alternator while also realizing the fan belt was worn out..

Return to top

32200 mi US $258	On-going engine pulsing/misfire at cruising speeds which turned into engine surging up to 3000rpm randomly. Diagnosis by shop determined Throttle Position Sensor was failing.
35000 mi US $50	After replacing the Throttle Position Sensor, there was still a slight misfire and mileage still seemed poor. The plugs and wires were replaced and the misfire seemed much better plus the mileage improved. There is still a slight "lag".

Return to top

19840 mi C $95	Just maintenance
27900 mi C $236	Replaced air filter

Return to top

58000 mi	intake manifold replaced replaced one coil
67000 mi US $85	Replaced fan belt.

Return to top

87000 mi

US $25

The ignition coil module cracked and was causing misfires. I replaced the module to fix this issue.

Return to top

124650 mi US $55	Changed Grooved idler pulley due to engine whining Changed grooved idler pulley due to engine whining
135200 mi US $30	Car felt sluggish and slow. Replaced spark plugs. Old plugs were very bad. The car feels a LOT quicker.

Return to top

12000 mi

Replaced Computer - intermittent inability to start (occurred once)

Return to top

302000 mi

US $1200

Idle air flow sticking. Did not repair.

98000 mi US $245	Passenger exhaust manifold broken at the flange.
98000 mi US $210	Driver side exhaust manifold.
107000 mi US $68	When replacing the exhaust manifold they didn't tighten the EGR tube up well, or installed it improperly. Had to go back.
108000 mi US $35	Replaced Cam sensor and cam synchronizer. Car made a squealing and Stalling. Installed myself. Easy. Look on Youtube for video's to learn how to do it.
137000 mi US $150	Wires on each [starter and alternator?] were frayed causing a parasitic drain. Could not have a battery hooked to it.

94000 mi

US $418

Camshaft Synchronizer and gasket replaced

95000 mi

US $320

Replaced the ignition coil pack, the plugs and wires, correcting a misfire.

Return to top

91500 mi

US $420

Coolant outlet on intake manifold broke off. Replaced intake manifold, replaced C.O.Ps with aftermarket, cleaned all bolts affected, cleaned/clear coated throttle body and thermostat housing. All work completed myself

Return to top

71000 mi

US $400

Two of four O2 sensors replaced.

Return to top

189720 mi

C $1300

The exhaust system had a cracked manifold. Replaced the entire single-pipe exhaust with a higher performance dual exhaust system. Coil pack and spark plugs failed.

Return to top

35340 mi

C $250

Replaced ignition switch

Return to top

228000 mi

US $450

Replaced 1 coil Repaired oil leak

Return to top

116000 mi

US $1200

Engine Replacement

Return to top

157000 mi

US $1000

Heater and radiator replacement.

139000 mi

US $2000

Bad head gaskets, coolant in the engine. Engine needed replacement.

Return to top

US $2000

Car was overheating, replaced radiator, waterpump, and temp sensor

108000 mi

this is the second time this code came on. cleaned EGR and checked function along with cleaning the O2 sensor. reset code by disconnecting the negative battery terminal.

140300 mi US $400	Replaced Spark Plugs, Plug Wires, and Ignition Coil. Also replaced about 3 feet of Emission System hoses due to age and dry rot.
143000 mi US $80	Replaced EGR valve and EGR solenoid. Due to prolonged hot soak restarts and engine missing on hot restarts.
147000 mi US $500	Replaced failed fuel pump

320000 mi US $100	Replace Coolant Resovoir
338000 mi US $150	Replaced Radiator Fan Assembly
351000 mi US $60	Cracked spark plug. Replaced with new plug
357500 mi US $51	Replaced spark plug. Added non-foul extender to one spark plug
364000 mi US $280	Radiator Cooling Fan failed

Return to top

117000 mi

US $500

I was told some type of spring broke in the engine.

Return to top

142000 mi US $310	Both mufflers were replaced due to welded seam coming apart.
143000 mi US $450	The serpentine tensioner pulley.

79000 mi

US $1100

Heater core leaking for second time and intake manifold leaking. Both replaced.

Return to top

101000 mi

US $300

Fuel pump faulty; replaced fuel pump

86000 mi US $480	coils, sparkplugs, throatlebody
87000 mi US $250	oil leak replaced oil pan gasket

Return to top

60000 mi

Brake fluid flush, replace spark plugs, new PCV valve.

72200 mi

US $400

Timing cover gasket leak

Return to top

114000 mi

US $465

Electric fuel pump quit on me while leaving my driveway.

Return to top

96720 mi

C $20

engine missing, replaced plugs, problem solved

Return to top

115320 mi

C $125

Smog pump delete pulley bearing was gone. Was squeaking and belt was almost coming off. Took 20 minutes to remove and replace.

Return to top

See TrueDelta's information for all Coupes and Convertibles.

See TrueDelta's information for all Ford models.

Ford Mustang repairs by problem area

Ford Mustang engine repair cost distribution

2021 Ford Mustang 2dr Coupe

2020 Ford Mustang 2dr Convertible

2018 Ford Mustang 2dr Coupe

2018 Ford Mustang 2dr Convertible

2017 Ford Mustang 2dr Coupe

2017 Ford Mustang 2dr Coupe

2017 Ford Mustang 2dr Coupe

2017 Ford Mustang 2dr Coupe

2017 Ford Mustang 2dr Convertible

2016 Ford Mustang 2dr Coupe

2016 Ford Mustang 2dr Coupe

2016 Ford Mustang 2dr Coupe

2015 Ford Mustang 2dr Coupe

2015 Ford Mustang 2dr Coupe

2015 Ford Mustang 2dr Convertible

2015 Ford Mustang 2dr Convertible

2015 Ford Mustang 2dr Convertible

2014 Ford Mustang 2dr Coupe

2014 Ford Mustang 2dr Coupe

2014 Ford Mustang 2dr Coupe

2014 Ford Mustang 2dr Coupe

2014 Ford Mustang 2dr Coupe

2014 Ford Mustang 2dr Convertible

2014 Ford Mustang 2dr Convertible

2014 Ford Mustang 2dr Convertible

2013 Ford Mustang 2dr Coupe

2013 Ford Mustang 2dr Coupe

2013 Ford Mustang 2dr Coupe

2013 Ford Mustang 2dr Coupe

2013 Ford Mustang 2dr Coupe

2012 Ford Mustang 2dr Coupe

2012 Ford Mustang 2dr Coupe

2012 Ford Mustang 2dr Coupe

2012 Ford Mustang 2dr Coupe

2011 Ford Mustang 2dr Coupe

2011 Ford Mustang 2dr Coupe

2011 Ford Mustang 2dr Coupe

2011 Ford Mustang 2dr Coupe

2011 Ford Mustang 2dr Convertible

2011 Ford Mustang 2dr Convertible

2011 Ford Mustang 2dr Convertible

2011 Ford Mustang 2dr Convertible

2010 Ford Mustang 2dr Coupe

2010 Ford Mustang 2dr Coupe

2010 Ford Mustang 2dr Coupe

2010 Ford Mustang 2dr Coupe

2010 Ford Mustang 2dr Convertible

2010 Ford Mustang 2dr Convertible

2010 Ford Mustang 2-door

2009 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Coupe

2008 Ford Mustang 2dr Convertible

2007 Ford Mustang 2dr Coupe

2007 Ford Mustang 2dr Coupe

2007 Ford Mustang 2dr Coupe

2007 Ford Mustang 2dr Coupe

2007 Ford Mustang 2dr Convertible

2007 Ford Mustang 2dr Convertible

2007 Ford Mustang 2dr Convertible

2007 Ford Mustang 2dr Convertible

2006 Ford Mustang 2dr Coupe

2006 Ford Mustang 2dr Coupe

2006 Ford Mustang 2dr Coupe

2006 Ford Mustang 2dr Convertible

2006 Ford Mustang 2dr Convertible

2006 Ford Mustang 2dr Convertible

2005 Ford Mustang

2005 Ford Mustang 2dr Coupe

2005 Ford Mustang 2dr Coupe

2005 Ford Mustang 2dr Coupe

2005 Ford Mustang 2dr Convertible

2005 Ford Mustang 2dr Convertible

2004 Ford Mustang 2dr Coupe