Mazda Protege Mazda Protege

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Mazda Protege repairs by problem area

Engine (41%)

Transmission and Drivetrain (4%)

Brakes and Traction Control (8%)

Suspension and Steering (22%)

Electrical and Air Conditioning (16%)

Paint, Rust, Leaks, Rattles, and Trim (6%)

Other (2%)

Chart based on 882 repairs.
See TSBs and recalls for the Mazda Protege.

Mazda Protege engine repair cost distribution

$2500+ (2%)

$1000 - $2499 (8%)

$500 - $999 (16%)

$100 - $499 (39%)

< $100 (35%)

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

Chart based on 330 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2003 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 5-speed manual FWD

117300 mi

US $250
Replace all motor mounts. All of them were in bad condition (cracked and torn) 
152000 mi

US $1200
coolant leak at thermostat induction cleaning to remove carbon build-up 
161500 mi

US $969
Also repaired exhaust system hangers that had broken. 
156000 mi

US $60
Replaced rear O2 sensor. 
165000 mi

US $20
CEL, changed spark plugs and replaced fuel injector. 
167000 mi

US $26
CEL P0171, caused by a cracked air intake boot. 
169900 mi Replaced front engine motor mount. 
179000 mi

US $30
Replaced valve cover gasket as the car has been burning some oil and wanted to see if this helped eliminate that. 
186000 mi

US $300
Replaced upstream catalytic converter. 
113500 mi

US $400
Engine would temporarily cut out while driving. Took to shop where it was diagnosed as a bad cam positioning sensor. The faulty part was replaced. 
114000 mi

US $1800
Car overheated on road trip to CA, had it towed to local repair shop. Diagnosed blown head gasket and radiator. Upon replacing head gasket they discovered that head was warped. Replaced head with a refurbished one. 
114700 mi

US $738
Horrible engine noise, removed timing cover to investigate, tensioner pulley and springs were shot and cover was broken. Mechanic to replace pulley, springs and belt. 
149000 mi

US $250
Car began idling low, near-stalling at stops, overheating. Shop performed diagnostics & determined that both engine head & block had severe wear related to poor workmanship on prior head replacement, not fixable, must replace engine. 
144000 mi

US $100
Sputtering at low rpm. Replaces ignition coils, wires and plugs, problem solved 
93620 mi

C $200
a small section of the exhaust pipe was replaced due to a rattling noise issue. the car is as reliable as ever! :) great car. 
98580 mi CEL, replaced O2 sensor. 
111000 mi

US $38
Error code 171. O2 sensor code. Discovered cracks in air cleaner intake hose(connects air filter box to engine). Youtube demo available. Symptom check engine light -> Shudder when accelerating hard. Problem could destroy motor if not fixed 
119300 mi

US $70
Valve Cover Gasket started to seep. While I have it apart. VC gasket, plugs, and PCV valve will be replaced. Also going to fix the rust spots on the rear fenders. 
129000 mi

US $300
Long story short... If your car suddenly doesn't start make sure to check your factory alarm has power... It has a downward facing fuse that can fall out, and it isn't on the circuit diagram for the car. Now I have real issues induced by trying to figure out why my car wouldn't start. 
129000 mi

US $250
Water pump was weeping. - Replaced water pump with full timing belt kit. Cam and crank seals replaced. Cam and Crank senors also installed as the crank sensor was damaged from getting soaked with coolant for an extended period of time. Also replaced a defective starter, but that was bad when I purchased it. 
131000 mi

US $80
Fuel Pump failed to start. Replaced fuel pump.... still didn't start after much troubleshooting I found that the resistance on the signal side of the fuel pump relay was too high to trigger the relay. The issue is either in the ECU or the wire between the ECU and the fuel pump relay on the negative side. I made a circuit to bypass the ECU with 15 dollars worth of parts from the surplus center. (youtube - "Mazda benjaminlately" for a detailed video on to deal with it. 
90334 mi

C $50
Replaced air intake boot, it snapped. Fresh air intake boot snapped; was giving off p0171 code. Ordered the part off autopartsway.ca and installed. Supposedly is a common problem with these cars. 
97960 mi

C $30
Car turned out a P0303 code; cylinder 3 misfire. Tried the easiest repair first, replacing ignition wires. It worked and fuel economy shows its back to normal. 
109000 mi

US $40
Fresh air intake hose replaced - had split. Air box retaining snaps cracking, fixed with zip ties. O2 sensor (pre-cat) failed 
72200 mi

US $975
two front engine mounts 
75600 mi

US $150
stuttering; replaced plugs, wires, coils 
93000 mi

US $2972
Engine overhaul. I must have dropped something into #4 cylinder as it began consuming oil after the 90K tuneup. 
139000 mi

US $79
Replaced suspect ignition coil and plug wires 
160000 mi

US $95
Replaced motor mounts 
138800 mi

US $104
Short in fuel injection system 
220000 mi A previously replaced ignition coil failed. Obtained warranty replacement part and replaced. 
157000 mi

US $600
Valve cover gasket was replaced. It was leaking a lot of oil. 
212300 mi

US $70
Oil leak in Cylinder 3. From compression test, believed to be from oil ring on the piston, not from the valve stem seals. 
76000 mi

US $300
Car overheated, need thermostat 
180000 mi

US $600
spun timing belt, replaced timing belt and waterpump. first timing belt change for this car @ 180,000 !! previous owner lied when he said belt changed @ 100,000 spun timing belt, replaced timing belt and waterpump. first timing belt change for this car @ 180,000 !! previous owner lied when he said belt changed @ 100,000 
185000 mi

US $100
vehicle wont start, new starter, new alternator, new battery, started and ran fine after previous repair on electrical work. issue is either Alarm wiring or bad ignition. mechanic looking at it again this week, will update after 
25000 mi Crankshaft angle sensor replaced under warranty 
118300 mi

US $250
Engine mount replaced 
123700 mi

US $1200
Radiator was replaced after leak was detected 
164780 mi

C $100
Air intake tube cracked 
83000 mi Past repairs include cleaning EGR valve and IAC valve (rough idle) 
86000 mi Ignition Coils needed replacing 
142000 mi

US $170000
estimate, repair not done yet 
108500 mi

R 550
The car would cut out under load. We first cleaned the petrol filter situated in the tank as it was clogged. A week later it did the same thing. We then drained the petrol tank as it was full of rubbish. No parts replaced 
48000 mi Wrong wheels ordered, so not installed. Will have to go back. 
66000 mi

US $280
Front left wheel bearing replaced after started making a loud noise during even the slightest turns over 20 MPH. 
84000 mi

US $118
Intake air tube developed a crack, perhaps when I replaced the air filter. Weak part. Caused the engine to run lean, setting off the CEL. Shop suspected this was a common problem, since the part was readily available. Intake air tube developed a crack, perhaps when I replaced the air filter. Caused the engine to run lean, setting off the CEL. Shop suspected this was a common problem, since the part was readily available. 
150000 mi

US $220
A coil pack was firing intermittently and was replaced. Drove too many miles with intermittent misfire, and took out cat. Replaced cat. 
213000 mi

US $329
Catalytic converter. 
223000 mi

US $60
One of two coil packs went out. Bought two replacements and installed. 
32000 mi Intake manifold screws fell out, new intake manifold 
35000 mi Intake manifold screws again fall out, new engine 
128000 mi

US $500
Replaced engine for second time. Burning oil again by November. 
128000 mi Catastrophic cooling failure, awaiting funds for repair. 
130000 mi

US $3600
Engine replacement. Timing belt broke, didn't change it when should have. Needs new engine. Was in shop for weeks. Don't know exact odometer reading. 
132000 mi

US $985
Small crack in radiator, probably present or cause of catastrophic failure in 2009. After engine replaced, radiator wasn't. Overheated once under extreme stress. Driven for weeks afterward, with no probs. Replaced rad, water pump, t-stat.  
80000 mi

US $2500
replaced motor with one that has 20000 miles on it., it was a cracked head that led to all this. 
82000 mi

US $3300
Bought the car, found out that it had a blown head gasket. To replace the gasket was going to cost 1100 bucks. It also needed a new clutch and pressure plate. Which was going to be another 500 bucks plus parts on top of that leaving the totol cost around 
84000 mi

US $169
3 Blown motor mounts, replaced them with upgraded ones from AWR 
36000 mi

US $112
Rubber intake snorkel cracked with age, needed to be replaced. 
56600 mi

US $150
Leaky head gasket. Replaced gasket. 
126500 mi

US $200
Replaced fuel pump relay fuse. 
137300 mi

US $20
Coolant overflow tank developed cracks and holes due to age. 
53000 mi OBD DTC P0037 - heated oxygen sensor. Dealer diagnosed sensor failure and replaced it free. Covered under CA Emissions warranty. 
67300 mi Oil leak; valve cover gasket. 
49000 mi

US $144
Car had developed a bit of a tapping noise from the engine. Mechanic suggested this was fairly normal as the engine gets older.  
99000 mi

US $100
Check Engine Light led me to P0300 code ("random/multiple misfires") and coils were the first suspect per online forum. Replaced coils and spark plug wires. 
106000 mi

US $90
Replaced front engine mount with Genuine Mazda part costing less than $100. Car was running acceptably with the bad mount but had wheel hop, especially when turning left. 
110000 mi

US $250
Replaced passenger side engine mount with Genuine Mazda part costing around $200. Car was running acceptably with the bad mount, but wanted to fix it. 
113300 mi

US $50
Valve cover gasket was leaking, so replaced it myself. Felpro gasket was $40 and included grommets; Permatex sealant was $7. 

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2003 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 4-speed shiftable automatic FWD

140000 mi

US $75
Thermostat went out while on freeway. Repaired onsite from personal mechanic. 
66340 mi Overheating problem. Source was Cracked cylinder head. Engine swap. 
66340 mi MAP sensor needed to be replaced when sold. Periodic check engine light. 
65000 mi

US $43
Threw a cel(Check Engine Light) code determined to be bad downstream O2 sensor at Advance auto parts.They will read the code for free.Bought part there and replaced it myself in about 35 minutes for a cost of 43$.Runs great! 
90000 mi

US $180
replaced radiator 
77500 mi

C $700
fuel pump housing was cracked. fuel would leak out and stink up the cabin as well as mark up the driveway. i do not like this car's reliability. 
64000 mi

US $170
Thermostat stuck in closed position, leading to engine overheating. $20 for diagnosis at random corner garage, then towed to usual mechanic, who charged $20 for replacement part and $120 in labor to screw it in, tax. 
41540 mi EGR r&r Purge valve replaced. New design EGR installed, finally. Covered by 7 year factory warranty, discovered by accident by owner. 
62000 mi

C $150
Temp gauge went sky high, thermostat replaced [2nd try]. 
67580 mi Shop cannot repair annoying check engine light - no obvious symptoms. 
68200 mi very glad to finally RID of this problem child - the whole thing started to go rapidly downhill at age 7, but only 110,000 Kms; needed coil packs... cat. convert, exhaust... 
34000 mi Both coil packs were failing, causing rough idle and severe hesitation. Dealer also replaced all four sparkplugs and both ignition wires as a precaution. Failing coil packs are a known problem that affects a small but measurable number of Proteges/Protege 
39000 mi Car died while idling at a stoplight. CEL stayed on and then turned off when car restarted. Dealer unable to diagnose and no code recorded. No charge. 
85760 mi

C $750
Spark plugs, cables, battery, ignition system 
101680 mi

C $1100
replaced water pump front exhaust 
63240 mi

C $300
check engine light came on. to the mechanic i go. read code: "front oxygen sensor" Replaced that sensor, reset code, nothing further to report. 
128960 mi 3. Engine light remains ON (mechanic cannot find problem). Turns back ON after reset. 
41224 mi Donut gasket on exhaust downpipe. Warranty repair 
115000 mi

US $320
Valve cover replaced.  
70000 mi

US $55
Received engine code error, misfire on two cylinders. Replaced two spark wires and plugs.Kept original coils. 
88925 mi

US $526
Replaced one injector, head gasket due to piston misfire. 
108000 mi

US $240
Fuel injector replacement (one injector). 

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2003 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 4-speed automatic FWD

50840 mi

C $430
EGR valve kit needed to be replaced. 
69440 mi

C $222
Front intermediate pipe from exhaust manifold was corroded and fell off. New pipe installled. 

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2003 Mazda Protege5 4dr Wagon

107880 mi Car would jerk when under power. Cleaned Fuel Filter and Fuel Tank 

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2003 Mazda Protege 4dr Sedan

turbocharged 170hp 2.0L I4 5-speed manual FWD

49800 mi

US $75
Cat pipe broke between the two cats. 
84000 mi

US $75
Front O2 sensor replacement 
92000 mi

US $100
Muffler replaced. 
185000 mi

US $500
Failed OEM turbo 
50500 mi

US $350
Check engine light indicating intake manifold runner stuck. Replaced intake runners. That didn't fix. 
52100 mi

US $350
Check engine light indicating intake manifold runner stuck. Replaced intake runners again. The Check Engine light with same code still comes on sporadically and then goes off after a time (anywhere from a day to several months). 
166000 mi

US $100
Accessory belt for power steering snapped for the second time in a month. 
69000 mi Coil pack #2 failed and was replaced with new duralast one by me(owner). Car runs perfect now. Valve cover gasket needed to be replaced, I(owner) did the labor. 
101000 mi

US $200
Misfire on one cylinder due to bad ignition coil pack. 
106000 mi Belt(s) would squeal on startup and when cold; probably not tightened enough during timing belt service. 
115000 mi

US $6
Oil leakage, due to bad o-ring on oil filler cap. Replaced cap with an aftermarket part. 
117000 mi

US $5
I was looking under the hood for another problem and noticed that a boot on the vacuum line feeding the turbo wastegate, BOV/recirc valve, etc. had split. Replaced with various vacuum hoses & fittings from stock on-hand. 
117900 mi Scantool showed code P0660. This code will not turn on the check engine light--it has to be found with a scantool. Code for VICS (variable intake) electrical problem. Tested vac. solenoid. High resistance, wouldn't pass vacuum correctly. 
119000 mi

US $130
Installed new VICS (variable intake) solenoid valve. Old solenoid valve had high resistance and wouldn't switch vacuum ports when power was applied. A test drive confirmed significantly better high RPM power with the VICS working again. 
123200 mi

US $89
Engine was very sloppy feeling, like its mounts were worn. Replaced very worn front engine mount, which was surprisingly easy to do. Rear mount should also be replaced, but will be a very big job, so I will defer it for now. 
129000 mi

US $65
Occasional slight misfire during warm-up, then later, a more severe misfire at startup. Check engine light came on. Code P0304. Followed Mazda troubleshooting procedure. Replaced both coil packs. Code came back again later. 
131000 mi

US $44
Misfiring, severe during cold warmup and slight when warm. Learned that the plug gap for the turbo is less, and they are frequently mis-gapped. Checked gap, too large. Plugs almost due to be changed. Installed new plugs, regapped to proper. Car started overheating in stop and go traffic with the A/C on. Turning on the heater cooled it down, and the temp was normal once the traffic started moving. LH cooling fan was getting power but didn't turn. Replaced fan motor. Once the LH fan was replaced, it ran continuously. Tapping the fan relay stopped the fan. Later drives showed that the fan rarely came on when the car was hot. The relay was sticking in both the open and closed positions. Replaced the relay. 

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2003 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 5-speed manual FWD

139000 mi

US $30
Valve cover gasket replacement. 
50000 mi

US $120
VICS screw loosened and went through engine, damaging spark plug. Engine misfiring. Replaced spark plugs. Not notified of recall. 
95000 mi

US $150
repair vacuum leak repair vacuum leak 
94000 mi

US $180
Reset check engine light due to fuel cap (apparently) not being on tightly enough. Replaced spark plugs at same time (75k on these) 
141000 mi

US $150
Replaced motor mount and hose between air filter and intake(broke due to motor mount). 
25000 mi Intake manifold screws released into combustion chamber resulting in dead spark plugs. Known issue related to a rolling recall. Repaired under warranty by Mazda. 

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2003 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed shiftable automatic FWD

92380 mi

C $10
Engine light came on; replaced gas cap. 
94860 mi

C $140
Code P2009 and P0301. Spark plug in Cyl. 1 replaced. Good for a week, then code P0302. Noticed electrodes on spark plug #2 touching. Replaced spark plug in Cyl. 2. myself. Drove a few more days, then code P2009. Suspect a problem with VTCS. 
96260 mi Discovered recall 3005C had not been done. This was the cause of the previous problem. Mazda dealership did the needed repairs. 
66000 mi

US $90
replaced plugs, wires & coils 
66000 mi radiator failed, traded car for 2015 Nissan Versa 5spd 
21947 mi Check engine light on. Internal Fault. Egr Valve replaced. No charge under warranty 
41000 mi

US $434
Engine Light ON. E G R Valve failed, and replaced. At same time had a seasonal check up including oil and filter change. 

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2003 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed automatic FWD

113597 mi

US $81
Bad driver's side ignition coil. Plugs & wires replaced as well. 
151496 mi Replacement driver's side ignition coil under warranty. 
143976 mi

US $20
New intake hose 
146000 mi

US $129
Failed drive belts from rubbing on engine cover led to failed radiator 
83080 mi

C $400
Bearing repaired. Not a wheel bearing but the bearing that is where the powertrain hits the transmission. 
85560 mi

C $60
Car had oil leak. Added stop leak to the oil. Also a different humming from front suspension. Told the problem needs to get worse before servicing as they could not isolate the problem. 
97280 mi

C $2
Replaced Water Pump, changed timing belt and replaced oil gasket on engine 
117180 mi

C $300
Carburetor hose broken 
136400 mi

C $300
radiator thermostat 
140000 mi

C $500
Replace radiator 
106020 mi

C $380
Replaced ignition coil for #2-3 cylinders 
60000 mi

US $49
Belt squealing. Idler pully had backed off losing tension. Belt had been replaced two months earlier on 60000 mile maintenance. So no charge. Vehicle was in for normal service so that accounts for the charges. 
135000 mi

US $153
Rusted pipe under engine. Replacement pipe, bolts/springs plus helicoil to repair threads in catalytic converter 
50840 mi

C $700
EGR valve stuck intake gasket 
48360 mi

C $875
Water pump started leaking coolant, had to have it replaced. Replaced the timing belt as well since it would be due soon (96000 KM), and dealer gave a package deal. 
52080 mi When at full stop (idle), car's RPM would fluctuate briskly. Took it to dealership, they replaced what is called the Idle Control Valve, which is a documented weakness of this car. No cost since there is a 7 year secret warranty on this component. 
92380 mi

C $958
Two of the ignition coils burnt out and had to be replaced, along with spark plugs. Regular 140k maintenance was also performed. 
132060 mi

C $1500
Gas tank had a leak, engine belt replaced. 
75020 mi

C $175
Replaced muffler. 
76260 mi

C $80
Car almost stalls at red lights/stops. Problem does not exist while driving. Mechanic suggested starting with cheap possible fixes. He replaced spark plugs - this did not fix the issue. 
78740 mi

C $90
Same problem as before - the mechanic rechecked everything and this time found a small hole in some kind of air intake hose. Once he replaced that, everything was OK. 
224000 mi

US $220
leaking gas tank. replace tank and fuel pump 

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2002.5 Mazda Protege5 4dr Wagon

turbocharged 170hp 2.0L I4 5-speed manual FWD

109000 mi

US $475
After hitting a very harsh bump on the highway, the fuel pump and fuel pump housing was cracked, causing a fuel leak (36mpg became 16mpg). I drove across the country with the leak but the gas fumes were pretty bad. Replaced the whole fuel tank/pump. 

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2002.5 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 5-speed manual FWD

55000 mi

US $385
Replaced the EGR valve for the third time, first out of warranty. also diagnosed creaking noise in rear as worn/loose sway bar end links. Need to be replaced at next visit. 
75000 mi

US $225
had to replace front pipe, completely rotted, needed new part, not just a welded repair 
82000 mi

US $500
egr valve problem is back,car stalling and running rough. Cel was egr flow insuficient. Cleared that then threw multiple cylinder misfire. 

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2002.5 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 5-speed manual FWD

122500 mi

US $100
Best guess, threw power steering belt which caused serpentine belt to go, causing overheating and cracked radiator. Car towed back to used car dealer where car was purchased and problems fixed under 1250 mile warranty. 
131800 mi

US $500
The EGR Value needed to be replaced after getting stuck open and stalling the car whenever at a stop. 
106200 mi

C $121
check engine light came on, and noticed some knocking. took car to dealer, who found a split intake tube. Tube was replaced, problems resolved. 
112220 mi

C $1100
Vehicle suddenly lost power. Towed to dealership. From the invoice: REPLACED T. BELT, WATERPUMP, W/P GASKET, COOLENT, T. BELT TENSIONER AND SPRING, ALT.BELT, V/C GASKET 
116560 mi

C $120
had the oil pressure sensor replaced 
141000 mi

US $80
Front motor mount failed (common on these cars with age). Replaced easily. 

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2002.5 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed automatic FWD

82000 mi

US $26
Cracked air intake hose was causing hesitation and light pinging. Surprisingly, idle was fine and no CEL. Replacement was easy and straightforward. 
93000 mi

US $1050
Brought in for knocking noise that varied with rpm - turned out to be timing belt flopping around. Root cause was not fixing leaky valve cover gasket in a timely manner. Replaced timing belt/other belts, water pump, cam/oil seals, etc. 
131500 mi

US $147
Noticed temp gauge started going up so went to shop a few blocks away before car overheated. It was the thermostat like I thought - easy and quick repair. 

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2002 Mazda Protege5 4dr Wagon

140-horsepower 2.0L I4 5-speed manual FWD

146640 mi

C $180
Alternator and water pump drive belt failure 
147640 mi

C $350
Broken throttle body gasket causing 'Chk Engine' warning light to illuminate. 
80000 mi

US $250
muffler failed, sounded like a world war 2 patton tank 
127000 mi

US $1000
gas tank leak, on top of tank. 
113000 mi

US $215
Thermostat and main serpentine belt 
118000 mi

US $190
Thermostat went bad, replaced. Also replaced main serpentine belt at the same time due to general wear. 
197000 mi

US $6000
timing belt broke inside of the engine - engine is damaged - repair was not successful 
153000 mi

US $90
Replaced thermostat ($90 at Tunex, wouldn't normally go there but it was overheating). 
154000 mi

US $115
Replaced cracked air intake housing/shroud (was causing stalling and check-engine light). 
175000 mi

US $1700
blew a head gasket 
192000 mi

US $500
water pump died 
202500 mi

US $40
replaced leaking sensor 
205000 mi engine ruined. overheated then very loud knock. not sure if it will survive. 
94000 mi

US $2400
Water pump failed, resulting in a faulty head gasket. New engine or machined head gasket was required. Water pump, radiator, repaired head gasket and reservoir. 
108200 mi

US $37
spark plugs stuttering 

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2002 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 5-speed manual FWD

44629 mi

US $383
Valve cover gasket replaced, light leaking noticed. 
56873 mi

US $432
Replaced two of four motor mounts due to age of rubber parts (cracking, losing effectiveness). 
61500 mi

US $50
Replaced front motor mount in attempt to quell vibrations. 
64979 mi

US $168
Thermostat stuck and caused an overheat. Replaced thermostat and flushed coolant, no problems since. 
70127 mi

US $1520
Replaced timing belt, water pump, camshaft seal, O2 sensor (pre-cat), transmission fork and pivot bearing. 
75780 mi

US $191
Replaced downstream O2 sensor. 
95000 mi

US $450
The fuel pump body had cracked on the gas tank. Excessive corrosion added to the work. The old bracket was rusted badly and could not be unbolted. The pump body, bracket, and gasket were all replaced. 
61299 mi

C $350
Replace three torn motor-mounts. Front Left & Right motormounts. 
63240 mi

C $800
Replace timing belt 
74000 mi

US $1000
water pump and timing belt 
117986 mi

C $180
changed coils, wires, plugs. greased gas pedal as it was sticking. changed coils, wires, plugs 
259000 mi

US $238
O2 sensor replaced 
93620 mi

C $179
P0171 - system too lean bank 1. Hose unplugged from throttle body - repaired. Pump would cut out when trying to fill gas tank. P0455 - Evap system gross leak. Evap control canister is full of water - ordered parts. Evap control canister and check valve replaced. 
93620 mi

C $219
Installed new canister. 
94860 mi

C $400
EGR valve changed 
98580 mi Front engine mount corroded and in need of replacement when sold. 
185900 mi

US $1200
Leaking coolant. replaced water pump and timing belt. 
182500 mi

US $400
Car overheating and check engine light on. Replaced radiator. Replaced spark plugs and spark plug wires. 
200000 mi

US $100
check engine light on. found tears/holes in plastic air intake duct. part replaced 
I had a problem with the timing belt and the engine was damaged, so I just sold it to a junkyard for a couple hundred bucks. 
107000 mi

US $550
Mechanic discovered that the transmission mount broke and needed replacement. 
76880 mi

C $400
Replaced EGR. 
155000 mi

C $250
EGR valve replacement 
161200 mi Replaced 2 coils, sparkplugs and wires. All is well. 
129000 mi

US $250
EGR valve had to be repaired. 2nd time in less than a year. Very unhappy with this design flaw. 
137020 mi

C $500
Replaced alternator belt. 
83080 mi Car wouldn't start after being parked and turned off for 15 minutes. Starter engaged, lights came on but engine wouldn't start. hit the gas, on gear, off gear - nothing. started after 30 mins doing nothing. no one knows what's wrong. 
156000 mi

US $40
Bad ignition pack(s) causing misfire. Easy fix with new packs 
77500 mi

C $1000
Replace front struts, front exhaust pipe, EGR valve, rear brake pads and rotors. 
104160 mi

C $500
Clogged EGR valve. 
115940 mi Overheated and scored cyclinders 
133300 mi

C $500
Clutch/flywheel replacement 
141000 mi

US $500
Internal thermostat blew, lost a gasket, and the engine overheated. Had to be towed. Check engine light came on while driving on highway. Went to the mechanic who diagnosed it as the catalytic converter. Replaced it with an after-market one and haven't had any trouble with it. 
154300 mi

US $140
Check engine light (P0037) and was told it was upstream O2 sensor. Ordered part online ($86) and took it to my local shop to install ($45). But problem not solved--engine light back on, same code. 

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2002 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 4-speed shiftable automatic FWD

150000 mi

US $125
Coils and EGR valve replaced 
162000 mi

US $300
intermittent over heating, after several attempts to recreate the problem, the water pump belt broke and after replacing it the over heating stopped. it looks like the belt was not always in contact with the pulley causing the problem 
114000 mi

US $1285
Valve cover gasket replaced due to leaking oil. Timing belt covers failed due to oil leaking around valve cover gasket; causing plastic to become brittle, crack and hitting the water pump pulley. 
120000 mi

US $318
Replaced air mass meter boot. 
141000 mi

US $54
Replaced cracked coolant tank. Replaced PCV valve and valve cover gasket due to evidence of oil leak around valve cover during SMOG testing. 
135000 mi

US $3046
Engine Blew 

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2002 Mazda Protege5 4dr Wagon

130-horsepower 2.0L I4 4-speed automatic FWD

71300 mi

C $800
1 Plug wire cracked, was shorting. Intake snorkle cracked, allowing for lean mix. Replaced O2 sensor, cleaned MAF sensor, oil and filter change. 
84940 mi

C $400
egr valve, exhaust 
88660 mi would not start even with a full battery after not being used for a few weeks. 
171680 mi

US $15
Brakes (rear), Timing belt, water pump, belts, oil pan gasket, rotate tires. Jay's Auto in Torrance damaged engine bolts while replacing valve cover gasket Air filter 
172195 mi

US $62
Spark plugs, wires, pcv valve, coil pack 
89000 mi

US $150
Engine was spiking when stopped, causing stalls. Air intake hose replaced which seems to have fixed it. 
107600 mi

US $240
Thermostat malfunctioned, engine overheated and burned through all the radiator fluid. No permanent damage but required towing. 
115000 mi Replaced timing belt 
129500 mi

US $600
Timing belt Radiator had a slow leak, noticed on cross-country drive. Replaced radiator as a preventative measure. 
140500 mi

US $120
Radiator developed a hairline crack and was slowly leaking coolant. Replaced radiator, hoses, and thermostat. 
141000 mi

US $35
Throttle body hose cracked, which threw a CEL code. 
151000 mi

US $60
Car had a misfire and threw a cel code. Based on the code, I replaced the coil packs and spark plugs. 
109000 mi

US $160
Cracked intake hose, ~$60+$90 (1hr) labor+tax 
110800 mi

US $50
Rough idle, plugs/wires/coils replaced (coils as PM as are known problem on this vehicle) 
115000 mi

US $200
Temp gauge above nominal range, thermostat replaced 
113000 mi

US $250
Cracked exhaust pipe caused leak/noise. Pipe and two gaskets replaced. 
120000 mi

US $1350
2nd catalytic converter and A pipe cracked (no code, only audible exhaust leak) ($900) VTCS solenoid failed resulting in P1569 code. Contacts cleaned prior to replacement, which helped, but problems still intermittent. Both replaced ($350). 
123000 mi

US $500
Leaking gasket; replaced. Still smell exhaust, so probably not successful. Valve cover gasket leaking; replaced 
216000 mi

US $150
Defective ECU. Caused rough running, stalling, loss of power. Replacing ECU fixed the problem. 
137000 mi huge crack in air intake hose after the air flow sensor, causing lean mixture, low idle, bogging on acceleration. Temporarily used tape until part arrived. 
58280 mi

C $1250
Replace timing belt; replace coils/wires/plugs 
74000 mi

US $1050
Car was squealing when cold. 
80000 mi Timing Belt replacement 
114000 mi

US $600
Car temperature was a notch higher than usual at a stop light. Mechanic said was a pin-hole leak in the radiator and needed replacement for $300. I opted to also replace thermostat/gaskets and all hoses for additional $280. 
116000 mi

US $500
Replaced rear oxygen sensor. 
150000 mi

US $650
Pre-catalytic converter had to be replaced 

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2002 Mazda Protege 4dr Sedan

140-horsepower 2.0L I4 5-speed manual FWD

104000 mi

US $35
Rubber intake tube cracked. $35 part, 10 minute install. 
167100 mi

US $60
Ignition coil pack 
85000 mi

US $180
air leak in the intake. leak was repaired. spark plugs were replaced. 
96000 mi

US $300
Cooling 

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2002 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 5-speed manual FWD

110000 mi

US $30
down pipe rusted off 
113000 mi Evap condensor needed to be replaced. Estimated to be a $300 repair. 

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2002 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed shiftable automatic FWD

135160 mi Fan belt was squealing. Could have been caused by a failing component. 

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2002 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed automatic FWD

112000 mi

US $60
CEL on & OD light blinking. Hard part-throttle 1-2 shift, no OD, 3rd gear slip. Scanner showed DTC P0715=Turbine speed Hall sensor failed. Sensor module easy to find & remove. Sensor resistance read out-of-spec. New sensor test/mesured at dealer parts counter. ATF changed as precaution. 
125000 mi

US $846
Replaced timing belt and tensioner (found spring end eating through idler), idler, water pump. Valve clearances still in-spec. Taking a chance with 20K miles overdue on an Interference engine! 
157000 mi Radiator and overflow hose tank leaked. Replaced both of them. Replaced front mount. Plastic air intake tube cracked but I had a spare. 
175000 mi

US $30
Coolant overflow tank cracked and replaced and radiator cap and overflow hose replaced as both showed signs of leakage at the radiator. 
125000 mi Alternator belt broke which caused battery not to charge and water pump overheat. The belt was not properly installed by the auto repair shop and it was not the car itself. 
162000 mi

US $1500
Replaced engine. Original engine was making loud noise due to bent valve or bearings. 
150542 mi

US $30
Failed ignition coil for cylinders 1 & 4, broken intake hose. Both replaced. New ignition wires 
70000 mi

US $740
Fuel tank leak due to rust - Fuel tank replaced 

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2001 Mazda Protege

Engine not specified

170500 mi

C $100
Car died mid drive. Towed home. Bf and I went to wrecking yard. Got wire harness,fuse box, something else I think. Changed plugs, and fuse box and couple fuses.More diagnostics done. Stab in the dark by brother in-law. Timing belt...bingo. 

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2001 Mazda Protege 4dr Sedan

140-horsepower 2.0L I4 5-speed manual FWD

142600 mi

C $300
Alternator belt was replaced. This was due to a weird noise I began hearing as I drove 

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2001 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 5-speed manual FWD

98000 mi

US $700
Motor mounts 
148800 mi

C $100
Check engine with code P0455, gas cap replaced in earlier attempt to clear, independent repair shop did evap smoke test and traced leak to a valve which was stuck open. Valve cleaned and reset , problem cleared for now. 
153760 mi

C $700
Noise during acceleration noticed by primary driver. Diagnosed as engine mounts rusted and damaged. Was replaced. 
180620 mi

C $770
Fuel tank leaking along seams due to severe rust. Fuel tank replaced which also necessitated fuel pump replacement. 
181040 mi

C $400
New fuel tank leaked through top where fuel pump and cap assembly met. Required new parts. 
186000 mi Water pump no longer working 
97340 mi

C $80
The front engine mount was bad. The rubber had started to rip. It needed to be replaced for some time. 
174000 mi Timing belt broke. I also discovered worn motor mounts  
94000 mi

US $93
Thermostat needed to be replaced. 

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2001 Mazda Protege 4dr Sedan

130-horsepower 2.0L I4 4-speed automatic FWD

95000 mi

US $150
Replaced radiator. Previous radiator was leaking. 
139000 mi

US $40
Replaced belts for A/C, power steering, alternator, and water pump. 
161000 mi

US $25
Replaced valve cover gasket and oil pan gasket 
151000 mi

US $1000
New engine. 
156000 mi Needed oxygen sensor when sold. 
93000 mi

US $200
Muffler and Resonator were bad - made a droning noise when accelerating. 
105000 mi

US $250
Rear motor mount was broken and one of the nuts was stripped. 
100720 mi

C $1000
EGR valve replaced as car was stalling at idle and otherwise running roughly. 
106020 mi

C $1300
Full exhaust system replacement including catalytic converter. 
106640 mi Exhaust pipe came loose from header. Improper bolt tightening from previous repair. 
147300 mi

C $606
First thing to go really wrong with this car aside from the odd light, radiator and thermostat replaced 
184800 mi

US $35
replaced thermostat 

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2001 Mazda Protege 4dr Sedan

103-horsepower 1.6L I4 4-speed automatic FWD

108500 mi

C $600
New wiring harness 
96000 mi

US $90
Replaced one ignition coil. 
99000 mi

US $45
Crankcase sensor was failing causing the engine to stall. Replaced. 
102000 mi

US $45
Radiator failed. Replaced. Second ignition coil failed 
110000 mi

US $72
Replaced the cam sensor. 
113000 mi

US $65
Engine low on power. Ignition coil was failing. Replaced. 

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2001 Mazda Protege 4-door

4-cylinder automatic 2WD

144000 mi

US $255
Air intake hose was cracked and needed to be replaced. Shop also cleaned the air intake sensor, and reset the computer.  
149300 mi

US $85
Broken Oxygen Sensor - replaced so car could pass emissions check 

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2000 Mazda Protege

Engine not specified

134000 mi

US $280
Oil Pan Leak 
110000 mi

US $800
Faulty O2 sensor (post cat) Catalytic converter is failing. Pieces on the inside are coming loose and rattling while the engine is running. 

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2000 Mazda Protege 4dr Sedan

122-horsepower 1.8L I4 5-speed manual FWD

138000 mi

US $150
Oil leaking from pan 
103000 mi

US $90
MIL/Check Engine light on, very rough acceleration. Found that the large air intake boot had cracked underneath, allowing air to bypass filter and air flow sensor. 
126000 mi

US $1100
Front oil seal and valve cover gasket replaced due to oil leaks. Belts, coolant, and water pump replaced during this operation. 

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2000 Mazda Protege 4dr Sedan

122-horsepower 1.8L I4 4-speed automatic FWD

90000 mi

US $177
Hole in snorkle 
124000 mi

US $595
catalytic converter 
134000 mi Timing belt went. The shop said the main bearings were also weak and recommended replacing the engine. Donated car. 

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2000 Mazda Protege 4dr Sedan

105-horsepower 1.6L I4 5-speed manual FWD

79000 mi

US $150
CEL on. Car was jerky starting out in first gear and had less power than usual. Air intake boot replaced. Relevant hoses also replaced. 
82000 mi

US $600
Clutch slipping. Replaced clutch, refaced fywheel 
157000 mi

US $650
Replaced the clutch plus a leaking coolant hose 
166000 mi

US $400
Developed 4 problems at once; EGR code (new EGR valve?),  needed both pipes for new muffler, and oil pan was leaking. Best case was $400 for ebay parts only; $2500+ at my shop. Sold the car. 
140000 mi

US $500
cam and crankshaft sensors need replacing. car was stalling under load. 
78000 mi

US $107
Car dies unpredictably when hot. Will not start until cooled off. Diagnosis was not easy - Replaced Cam sensor to fix it. 
97625 mi

US $295
had an alternator belt replaced 
118395 mi

US $210
Replaced leaking valve cover gasket 
126000 mi

US $20
radiator cap broke - replaced it 

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2000 Mazda Protege 4dr Sedan

105-horsepower 1.6L I4 4-speed automatic FWD

255000 mi

US $300
Timing belt replacement 
174000 mi exhaust leak-new flange 

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2000 Mazda Protege 4-door

4-cylinder automatic 2WD

102000 mi

US $500
Egr valve replace 
115000 mi

US $200
Replace ignition coils 
117000 mi

US $288
EGR Valve and gasket 
111000 mi

US $900
Timing belt and other belts 
115300 mi

US $200
There was leakage in exhaust pipe which was causing loud exhaust noise. A bend pipe which is part of exhaust system was replaced. 
138260 mi

C $1200
Timing Belt replaced, Serpentine Belt replaced (2 belts), Water Pump replaced 
143100 mi

C $375
EGR valve had to be replaced after Check Engine light came on permanently. 

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1999 Mazda Protege

Engine not specified

219000 mi

US $1000
Radiator was leaking a lot. 
177000 mi

US $450
Clutch replacement.  

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1999 Mazda Protege 4-door

4-cylinder manual 2WD

167400 mi

C $530
Corroded and leaking gas tank (at seam) 
174840 mi

C $300
cracked intake tube/hose. 
211420 mi

C $800
Leaking oil pan weeping around flange area. Needed to be replaced coolant bypass line worn out due to age. exhaust manifold holed and leaking due to age/wear and tear. 
221960 mi

C $250
Replace fuel rail and MAF sensor. 
241800 mi

C $140
leaking frost plug causing partial loss of coolant 
241800 mi

C $450
Replace worn clutch. 
106640 mi

C $722
Alternator pulley replaced. EGR valve frozen in open position. 
110360 mi

C $700
Fuel mixing with oil thanks to bad FP Regulator. Mazda Dealer had previously checked and said it was fine. Hard start persisted, caused fuel to be forced past piston rings. Destroyed rings, crank bearings and rear main seal. 
98000 mi

US $750
Timing belt tensioner started to fail. Car still drivable. Cost would have been less, but owner decided to replace water pump, timing belt, timing belt idler and accessory drive belts as a preventative measure. 
111000 mi

US $40
Replaced flexible intake hose between air filter and throttle body due to rotting of hose. 

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1999 Mazda Protege 4-door

4-cylinder automatic 2WD

111000 mi

US $300
engine light lean condition 
61380 mi

C $150
Oil feeder was leaking, replaced without incident. 

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Mazda Protege Engine Problems

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