2010 Ford Flex Ford Flex 2010

We are 103,000+ car owners sharing real-world car information.

Join Us

2010 Ford Flex repairs by problem area

Engine (16%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (9%)

Suspension and Steering (20%)

Electrical and Air Conditioning (21%)

Paint, Rust, Leaks, Rattles, and Trim (18%)

Other (6%)

Chart based on 311 repairs.
See TSBs and recalls for the 2010 Ford Flex.

2010 Ford Flex engine repair cost distribution

$2500+ (2%)

$1000 - $2499 (11%)

$500 - $999 (2%)

$100 - $499 (29%)

< $100 (56%)

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

Chart based on 45 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2010 Ford Flex 4dr SUV

turbocharged 355hp 3.5L V6 6-speed shiftable automatic AWD

9000 mi Was having issue with poor fuel economy.  
62000 mi oil leak 
31000 mi Problem with hesitation and loss of power, spark plugs replaced under a tab, can provide if helpful. Warranty repair, no charge. 
58000 mi

US $175
Diagnosed problem with ignition coil on cylinder 3. Took it to dealer to see if under warranty. They diagnosed again, came to same conclusion. Wanted $700 for diag, repair, and plugs. Declined, paid for diag. Replaced ignition coil cylinder 3 as well as all spark plugs myself. 
44000 mi Engine misses at idle. 
34000 mi

US $30
Flex was idling rough. I replaced the spark plugs (newer recommended #) and all is fine. 
89000 mi

US $210
Loss of power and whistling noise. Dealer found both Turbos were bad and replaced them. This was covered under an extended warranty plan from Allstate. The total cost was 2400.00 and my cost was the deductible of 210.00 
39060 mi Defective turbo chargers 
41540 mi after replacing turbochargers there was an airlock in the cooling system that wasn't noticed till the heating season. The car would blow cold air at an idle but heat normally when driving along. Cooling system had air lock in it causing the passenger compartment heater to blow cold air at a stop but blow warm air once moving again. 
66000 mi

US $1200
Gas odor rear of car. Gasket around one of two fuel pumps leaking small but evident amount of fuel. Both pumps replaced as labor was dominant cost to repair and the same whether one or both were replaced. Pumps had to be replaced as gaskets etc are one unit! If I did not love the car I would be very upset! 
129500 mi

US $870
#5 fuel injector stuck open, CEL and lots of white smoke out of the tailpipe, smelled strongly of gas. 
129900 mi after replacing #5 fuel injector, could smell gas under the hood after driving the car, especially if driven spiritedly. Fuel rail replaced. #4 fuel injector stuck open, shortly after the #5 fuel injector failed stuck open. The stop was originally going to eat the cost o the fuel rail, ate the cost of the second injector instead. 
1100 mi - Rough Idle; Solid CEL (Check Engine Light) came on. Originally thought it was bad gas. Took to dealer replaced O2 sensor under warranty. Repair time 2 hours. 
43080 mi

C $100
No heat at idle, attempted rad flush of both heater cores but no success. Removed and replaced both heater cores. 11 hours of labour- gave us a courtesy loaner call- first warranty item that needed work. 
24800 mi front turbo had a very slow leak. TSB was executed to replace all washers for oil and coolant lines to and from the turbo 
90000 mi

US $100
water pump started leaking out the seep hole and coolant was going down ~0.5" / day. After 2-3 days of this we took the Flex in and the water pump was identified as being bad and needing to be replaced 
78000 mi

US $158
Vehicle was running rough. Dealer found bad fuel injector on cylinder 2. 
65200 mi O2 sensor failed and replaced 
80000 mi

US $1580
O2 sensors and network. Brake discs and pads. 
112300 mi

US $1400
Broken motor mount, reprogram computer 
16120 mi After driving the Flex for a short period of time, the engine overheated and leaked coolant everwhere. The diagnosis was that the fan was not being told to kick on. Part was B/O for 24 days (also no Flex to drive during that time)  
68000 mi

US $100
Code P0442 - evap leak. Corrosion on the top surface of the fuel tank causing a vapor recovery system fault code. Tank needs to be replaced--back ordered. 
60200 mi

US $385
Cooling system heater hose Passenger side hvac blender door Coolant hose 
9000 mi Extremely hard shifts; sometimes total loss of power; warnings on dash Dealership called Detroit. Fixed something(?). Running well now. 
11200 mi At least seven occurences of harsh shifts since last reported, the most recent being violent bucking. Dealer said cannot replicate. Performed three TSBs, but since then I've had four minor drop-to-neutral-slam-into-gear occurrences. 
17000 mi High pressure fuel pump replaced. 
48000 mi Replaced high pressure fuel pump. 
4200 mi

US $23
Evidently a defective bolt holding the hose on to the turbo intercooler broke. This resulted in the other bolt holding the hose to also break and a loss of power. Intercooler was also replaced due to possible damage. 

Return to top

2010 Ford Flex 4dr SUV

262-horsepower 3.5L V6 6-speed automatic FWD

58000 mi

US $120
Exhaust gasket rusted and broke 
89000 mi

US $2500
Engine light, indicated cam phasers, $1,800 estimate. Mechanic suggested spending a little more, $2,500, to get an entire newer engine. 
71000 mi Oil in radiator fluid, and smell of radiator fluid in exhaust. 
101680 mi

C $1300
Failed waterpump resulted in coolant leaking into the crankcase. This resulted in reduced performance and loss of coolant fluid. Thankfully no damage to the engine. 
141000 mi

US $189
engine hesitation, replaced one coil pack 
145600 mi

US $250
Engine hesitation returned after less than a week. Replaced all coil packs. 
13000 mi Wrench lite came on, ran VCR which stated take to dealer ASAP reduced power etc. Lite not on at dealer they said no event stored in computor. (BS) car got sunshine treatment. 
15000 mi Replaced electronic throttle body 
91000 mi

US $100
Evaporate system leaking and they are still having a hard time diagnosing it. Also had work done to the front suspension which is completed. 
107000 mi

US $1200
The fuel system was evaluated for a fuel leak (not repaired). Vehicle has minor fuel leak on 'top' of tank  and minor oil leak on front of engine (not repaired). 
165000 mi Engine broke - coolant and oil mixture in oil pan. Required engine replacement. 
77000 mi Error code related to throttle sensor. Researched, pulled throttle body and cleaned. Reset code and problem has not returned. 
24000 mi Slow Oil drip - Replaced seal that required removal of transmission replace seal 

Return to top

2010 Ford Flex 4dr SUV

262-horsepower 3.5L V6 6-speed automatic AWD

81980 mi

C $200
O2 sensor left bank caused check engine light to come on. Reset check engine light. No issues. No replacement of sensor required. May have been due to fuel mix on heavy acceleration. 
41700 mi Leaking green fluid from mid of vehicle. They were unable to reproduce the problem, seems to be intermittent. 
42160 mi The O2 sensor needed replacement after giving a warning light signal. Part had to be ordered in and repair time was over 2 days because of wait. Repair was covered by emissions warranty. 
8200 mi Was stalling in park. Brought in and repaired per TSB 10-21-6: throttle body was replaced. Problem solved. 

Return to top

See TrueDelta's information for all SUVs
See TrueDelta's information for all Ford models.

2010 Ford Flex Engine Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently 2010 Ford Flex problems occur, check out our car reliability stats.