| 1 | 0 | 3 | 4 | 3 | 4 |
Infiniti I repairs by problem area
Engine (42%)
Transmission and Drivetrain (10%)
Brakes and Traction Control (6%)
Suspension and Steering (20%)
Electrical and Air Conditioning (19%)
Paint, Rust, Leaks, Rattles, and Trim (2%)
Other (1%)
Chart based on 346 repairs.
Infiniti I engine repair cost distribution
$2500+ (0%)
$1000 - $2499 (9%)
$500 - $999 (17%)
$100 - $499 (49%)
< $100 (25%)
Chart based on 140 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2004 Infiniti I 4dr Sedan
255-horsepower 3.5L V6 4-speed automatic FWD
| 92000 mi US $600 |
Replaced rusted center exhaust resonator and muffler. |
2003 Infiniti I 4dr Sedan
255-horsepower 3.5L V6 4-speed automatic FWD
| 84000 mi | Cam sensor failed |
| 88000 mi US $1500 |
Several cracks in exhaust system, including Y-pipe from engine to exhaust and the rear portion of the exhaust pipe system |
| 147000 mi US $400 |
Motor mounts |
| 147000 mi US $800 |
Spark plugs, coils, oil cooler gasket. Drive belts. |
| 155500 mi US $150 |
Gas cap leaking, caused evap canister engine code. New gas cap fixed it for $15. Also stopped trying to overfill tank, may have saturated the canister. Did General maint of trans flush, front brakes, PS flush, filters, belts, wipers, rotate |
| 175000 mi US $500 |
radiator cracked, was replaced. Flushed cooling system and refilled. |
| 116000 mi US $150 |
Car overheating, replaced thermostat and radiator cap |
| 151300 mi US $330 |
It was the bad crank shaft sensor, according to my mechanic, the car was drivable, with service engine light on, part was ordered the same day car is fixed. Total cost including labor $330. This is the first failure after 150K. |
| 130000 mi US $350 |
Coolant was getting low. Found tiny crack at top of radiator. Replaced radiators to fix. Also replaced thermostat and hoses as preventative. Replaced coolant with OEM and burped system until heater blew hot. |
| 116000 mi US $20 |
Hose under car connecting the fuel evaporation canister broke. Probably a rock hit and broke it. |
| 89000 mi | I noticed when the engine would rattle when revved at normal operating temp and in park. Infiniti dealer said catalytic converter had an internal failure and it was replaced under warranty |
| 128000 mi US $30 |
Replace Camshaft Sensor |
| 131000 mi US $20 |
Replaced oil pan gasket. |
| 105000 mi US $140 |
Radiator started leaking, replaced radiator and cap. |
| 119700 mi US $200 |
Attempted to fix pinging problem |
| 126000 mi US $300 |
Car starting running poorly and dying. Replaced cam and crank position sensors according to an old recall. Problem not fixed. Flushed engine and thoroughly cleaned Variable Intake Valve Timing Control Solenoids. Problem fixed. |
| 225660 mi C $65 |
Exhaust leak. Was repaired |
| 228160 mi C $200 |
crankshaft sensor was not working so car wouldn't start....after a few tries it eventually started...took it in and had sensor replaced |
| 238080 mi | Leaking engine oil from a gasket near the tranny. |
| 80600 mi C $600 |
Crank position sensor replaced |
| 86180 mi C $600 |
Rad replaced. Started leaking near the top. |
| 131740 mi C $1080 |
Replace exhaust system |
| 109000 mi US $580 |
Passenger side engine mount replaced. |
2002 Infiniti I
Engine not specified
| 122000 mi US $500 |
radiator leak. |
2002 Infiniti I 4dr Sedan
255-horsepower 3.5L V6 4-speed automatic FWD
| 164200 mi US $115 |
Lower oil pan gasket was leaking and needed to be replaced. Also required an oil change after this repair. |
| 135500 mi US $130 |
Radiator was cracked, replacement solved problem. |
| 138000 mi US $218 |
Valve cover gasket needed to be replaced as it had leaked oil into three of the cylinders. Also replace three spark plugs and three ignition coil boots. |
| 170000 mi US $45 |
The EVAP canister bypass valve malfunctioned and needed to be replaced. It was a simple part replacement. |
| 171000 mi US $522 |
Front engine mount (w/ sensor) was replaced. Engine oil pan leaking oil. Gasket replaced and oil change performed. |
| 171000 mi US $452 |
Bad ignition coil on cylinder 2. Heated oxygen sensor 2 bank 1 went bad. |
| 62300 mi US $316 |
front left strut replaced (right front strut was not replaced but was strongly suggested) NOTE: Dealer price was achieved after two rounds of haggling. |
| 77000 mi US $770 |
car overheating....replaced leaking radiator, upper/lower hoses, thermostat, coolant reservoir |
| 79000 mi US $500 |
one coil malfunctioned causing rough engine; due to rear location of coil and labor cost to work in that area, all three rear coils were replaced. (all six spark plugs were also replaced for first time although cost is not reflected here) valve cover gasket leaks reported over one year period during regular maintenance or other repairs. This repair cost $700. (three coils replaced on this date cost $500. Tune-up and six new plugs cost $150) |
| 86000 mi US $1367 |
Oil leaks into engine compartment and on ground and noise coming from engine. Replaced crankshaft seal. Replaced lower oil pan gasket. Replaced oil cooler O ring. Replaced power steering suction hose. Replaced idle pulley. |
| 167000 mi US $1100 |
The throttle pressure sensor was defective which required the accelerator pedal assembly to be replaced. |
| 82000 mi US $200 |
Oil leak through the lower oil pan seal: seal replaced, oil cooler adapter seal replaced, drive belts replaced. |
| 87300 mi | Check Engine light came on - code P1456 very small EVAP leak. Emission test failed. Tightened gas cap, disconnected battery for 48 hrs. Light is off. Test is OK. In a week the same problem back. Will follow diagnostic procedure. |
| 90100 mi | Replaced gas tank cap - MEL is OFF. Every time engine started it dies unless gas pedal pressed. Had Mass airflow sensor cleaned, removed and cleaned throttle, air filter. Performed idle relearning. The idle above normal ~900. will check. Replaced gas tank cap - MEL is OFF. Every time engine started it dies unless gas pedal pressed. Had Mass airflow sensor cleaned, removed and cleaned throttle, air filter. Performed idle relearning. The idle above normal ~900. will check. |
| 91000 mi US $20 |
Six mo. ago CEL code P1456. Replaced gas cap, disconnected battery to clear code. Since then engine died when starting if don't keep RPM above 1000 for 2 sec. Removed throttle assm, cleaned w/ MAF cleaner, replaced gasket. Performed manual idle relearn. |
| 94300 mi US $100 |
CEL on. Code P1456: EVAP system small leak. Found typical hair crack on EVAP canister @ the vent control valve attachment (left bolt). Broke all bolts when removed parts. Drilled them out. Fixed the crack, reinstalled. Saved $300 on parts. |
| 88660 mi C $100 |
"'Service Engine soon"' light on; told that camshaft timing sensor?? had caused light; would cost approx $500 for parts and labor. Light was reset, has not come back on in past two weeks (knock on wood). Performance of vehicle is good. |
| 100000 mi US $2000 |
Cracked radiator. Engine cooling system (radiator, water pump, thermostat, heater core, etc.), repair |
| 123900 mi US $500 |
Serpentine belt |
| 122000 mi US $400 |
Replaced the motor mount, but squeaking and grinding on left turns persisted. Mechanic has fully disassembled the left front wheel and determined there is a problem with the wheel hub. |
| 125000 mi US $225 |
Failing camshaft sensor causing engine to intermittently hiccup and then cut off. Diagnosed after Check Engine light came on. Replacement part has been ordered. Initially thought it was water in gas tank. |
| 75020 mi C $100 |
Clunking noise observed on right front of vehicle. Replaced right engine mount myself. Problem resolved. |
| 91760 mi C $60 |
Replaced right valve cover and gasket, (with a 2004 Maxima version), as it was leaking oil into the spark plug wells of #'s 3 & 5 cylinders. Installed a NWP intake spacer kit while I was @ it.:) |
| 96720 mi C $27 |
Not a big deal, but replaced fuel cap as an odour of fuel could be smelt @ the fuel door after a drive and an occasinal check engine light. The engine light is the only reason that I mention it as a "repair". I replaced the cap myself. |
| 98580 mi C $200 |
Rad started to leak @ the top tank seam. Replaced it myself along with 2 new rad hoses and fresh coolant. |
| 132500 mi US $500 |
Replace sensor for emissions Replaced oil pan. |
| 121000 mi US $300 |
Radiator leaked, needed to be replaced. |
| 34000 mi US $100 |
engine light,sensor replacement, accelerator pedal - covered under warranty |
| 195000 mi US $750 |
Radiator replacement. Power steering power pressure line replaced |
| 162000 mi US $54 |
Cam position sensor replacement (bank 1). |
| 152000 mi | Check engine code of a faulty automatic speed sensor and misfires. |
| 84600 mi US $165 |
Exhaust hanger was loose and flanges on center section were coming apart. Weld and replace hanger. |
| 115000 mi US $150 |
Top tank of radiator leaking. Radiator and thermostat replaced. New hoses, clamps, and radiator cap also installed. |
| 131000 mi US $450 |
Fuel pump replaced (emitted noise after shutting car off) |
| 150000 mi US $380 |
Front and rear engine mounts |
| 154000 mi US $1200 |
Engine and transmission mounts |
| 164000 mi US $100 |
Sensor near gas tank replaced. Ses code p1448. It didnt clear the code, no visible symptoms. Might have to change out some hose or lines. |
2001 Infiniti I 4dr Sedan
227-horsepower 3.0L V6 4-speed automatic FWD
| 147000 mi US $320 |
The check engine light came on and the vehicle started missing, the number 5 cylinder had misfire. coil pack was bad. was replaced, after watching repair realized could have done my self not hard at all. |
| 95000 mi US $225 |
buzz automotive repair 62234 diagnosed and replaced #4 cylinder coil and plug. Took car their in afternoon and picked it up the next am |
| 196000 mi US $10 |
O2 sensor code for cat, you get spark plug foulers and it fixed the problem |
| 199000 mi US $200 |
Radiator started leaking from the top. Had to drain coolant and about a quart of transmission fluid from the radiator and the replace it and bleed it |
| 208000 mi US $350 |
Had problems stalling. P0505, Required new Idle Controller, ECU to be repaired, coolant bypass, also disconnected Active Engine Mounts. Dealer Quoted: $2200. |
| 84000 mi US $853 |
radiator rusted out and started leaking coolant. Had to replace radiator, hoses, thermostat. |
| 177320 mi C $120 |
Fan broke. Easy, quick fix: just swapped in a new one. |
| 107000 mi US $400 |
replace rusted gas filler tube. |
| 77000 mi US $335 |
Dealer replaced exhaust tube that was covered under emissions warrenty, I paid for a bad O2 sensor. The O2 sensor was not covered by the emissions warrenty. |
| 91000 mi US $475 |
O2 Sensor replaced. |
| 103000 mi US $1200 |
Replaced Catalytic Converter |
| 119000 mi | catalytic converter failed but was covered under warranty from where it was replaced in Jan 2010. |
| 62000 mi US $480 |
New muffler |
| 86200 mi US $500 |
Check engine light. Problem with EGR and oxygen sensors. Replaced. |
| 87500 mi US $636 |
Timing chain cover gasket leak |
| 88300 mi US $1632 |
Complete exhaust replacement |
| 96600 mi US $1866 |
Water pump |
2001 Infiniti I 4-door
6-cylinder automatic 2WD
| 116000 mi US $60 |
Check engine light, cat converter out of factory spec. Shop said no real need to replace. Car drives fine. |
| 139000 mi US $800 |
replaced spark plugs and all 6 ignition coils |
| 122000 mi US $300 |
Faulty Transmission revolution sensor resulted in abnormal shifting. Happens in low speeds. No matter how much you try accelerate, power won't be transmitted to the wheels. Simply put its was like getting stuck in 1st gear. |
| 110000 mi | The O/D button on the shifter was very intermittent. Most of the time it did not operate at all. They wanted over $600 to replace the entire shift lever. I said forget it, and now it is working okay with no repair. Who can say what happened?? |
| 115000 mi US $50 |
Rough running at start up from cold. Eventual CEL, reading "lean condition left bank". O2 sensors test okay. paid for diag, shop will fix on future attempt with credit for diagnosis. |
| 117000 mi US $175 |
Replaced O2 sensor upstream bank 1. Problem unchanged. Replaced Mass Airflow Sensor with remanufactured part. Problem eliminated! |
2000 Infiniti I
Engine not specified
| 129900 mi US $400 |
difficulty with the fuel/air block |
2000 Infiniti I 4dr Sedan
227-horsepower 3.0L V6 4-speed automatic FWD
| 107000 mi US $350 |
SES light on was told by dealer that my catalytic converter was bad and to replace would be $1800 |
| 210000 mi US $633 |
Rear main seal is leaking. Dealer was charging $1800 to fix. |
| 107000 mi US $350 |
Idle control sensor. |
| 117000 mi US $600 |
Replaced 2 ignition coils and crank sensor. |
| 135000 mi US $340 |
Muffler rusted and developed a leak. |
| 150000 mi US $350 |
Radiator cracked was leaking coolant |
| 92800 mi US $268 |
maf replaced |
| 101000 mi US $425 |
cat replaced |
| 156000 mi US $377 |
Ignition switch issue. Key would not turn. New keys had to be cut and reprogrammed. Helped the problem but did not solve it. I will be going back to have the ignition switch replaced as key still get stuck about 20 percent of time. |
| 128000 mi US $700 |
Cylinder #2 had blown out spark plug, and shattered ignition coil, using a key insert threaded new threads into cylinder spark plug sleeve and inserted a new threaded sleeve, replaced coil and plugs |
| 118000 mi US $35 |
noise when starting car in the morning. self diagnosed as belt loose. mechanic could not replicate but did tightened the belt, which fixed the problem |
| 115200 mi C $500 |
exhaust leaked and was very loud and causing the car to vibrate. |
| 175000 mi US $10 |
Car had very rough idle during cold starts. Ran seafoam through vacuum lines and this appears to have fixed the idle. |
2000 Infiniti I 4-door
6-cylinder automatic 2WD
| 143000 mi US $130 |
Failure of cylinder 1 ignition coil. All 6 coils replaced from a junkyard. |
1999 Infiniti I
Engine not specified
| 202000 mi US $1300 |
I also replaced the muffler. |
| 209100 mi US $550 |
Ignition switch replaced. |
| 218000 mi US $333 |
Replaced radiator and thermostat |
1999 Infiniti I 4-door
6-cylinder manual 2WD
| 117000 mi US $1500 |
Knocking, carbon buildup. |
| 120000 mi | Impending muffler work. |
1999 Infiniti I 4-door
6-cylinder automatic 2WD
| 103000 mi US $85 |
throttle body cleaning |
| 109000 mi US $450 |
Both valve cover gaskets were leaking |
| 111000 mi US $100 |
throttle body dirty |
| 115000 mi US $309 |
radiator leaked |
| 120000 mi US $300 |
one ignition coil was replaced |
| 132000 mi US $1400 |
Radiator leaked fluid and almost caused car to overheat on the way to dealer for diagnosis. Had to be towed the rest of the way. Replaced the radiator for about $600. |
1999 Infiniti I 4-door
4-cylinder automatic 2WD
| 144200 mi US $60 |
valve cover gaskets |
1998 Infiniti I 4-door
6-cylinder automatic 2WD
| 147000 mi US $425 |
Knock sensor need replacing |
| 148000 mi US $325 |
Emissions Valve-not sure of the exact name. |
| 170000 mi US $135 |
Ignition Switch was wearing out and sometimes did not engage the starter. Replaced the switch. |
| 208000 mi US $85 |
Hole in the flex-pipe and broken exhaust hangars. The cost of the part and labor is probably equal to what the car's currently worth, so I decided not to have it fixed. |
| 211000 mi | We discovered some holes throughout the exhaust system - too costly to repair. |
| 150000 mi US $477 |
SES light on. Dealer said the computer indicates that there was a blockage in the egr port from carbon build up. |
| 163000 mi US $480 |
SES light came on. Diagnosed as a needing a new oxygen sensor. Item replaced, problem solved. |
| 165000 mi US $490 |
Valve cover gasket leaking. Gasket was replaced. |
1998 Infiniti I 4-door
4-cylinder automatic 2WD
| 137000 mi US $300 |
egr trouble code -leaking intake manifold causing intermitent ground fault code -dirty radiator + 130k+ miles on original water pump |
| 147000 mi | Evap emission hose clogged by spiders. |
| 191000 mi US $50 |
misfire |
| 196000 mi | occasional stumbling |
1997 Infiniti I
Engine not specified
| 173000 mi US $200 |
Replaced radiator after noticing a crack on the top tank. |
| 203000 mi US $97 |
One Radiator fan was wobbling, creating a horrible noise when the A/C was on. I ordered a new Radiator Fan Assembly and installed it. Worked like a charm |
| 146000 mi | Came back from road trip, and car was making horrible wheezing sounds (think bad asthma). Mechanic said it was one of the pistons (or something at least $100) if I was lucky, but the transmission would go out shortly, too. |
1996 Infiniti I
Engine not specified
| 193000 mi US $650 |
Car would stall and had NO power. Check engine light was on so I bought an obdII computer and it confirmed the Mass Airflow sensor was bad. Part from Nissan over $600 but VERY easy to replace. My mechanic: "aftermarket MAF sensors much cheaper but risky" |
1996 Infiniti I 4-door
6-cylinder automatic 2WD
| 224000 mi | radiator hose was leaking. mechanic replaced at no cost (I'm a long term customer and it was a minor repair). |
| 234000 mi US $405 |
Harmonic balancer, ac/ alternator belt, power steering belt replaced |
| 224000 mi US $250 |
radiator hose cracked |
| 154000 mi US $531 |
rear muffler only. |
| 172000 mi | Radiator rusted, engine supports rusted, would not have passed state inspection. |
| 84940 mi C $200 |
O2 sensor needed replacement. |
| 100440 mi C $1800 |
Oil leak coming from high pressure seal. Front of engine taken apart. Seal fixed, timing chains replaced, water pump replaced. |
| 210000 mi US $85 |
Idler pulley bearing was bad; replaced idler pulley. |
| 230000 mi US $150 |
radiator, upper and lower hoses, clamps replaced |
| 87000 mi US $60 |
Metal exhaust hangers rusted through, leaving exhaust to clank around underneath chassis. Hangers replaced. |
| 168000 mi US $85 |
Check engine light came on indicating the need to replace the knock sensor. The muffler had rusted out at the flange where it meets up with the resonator pipe. Ordered new OEM style cat-back exhaust system and replaced it myself. |
See TrueDelta's information for all Infiniti models.
