2008 Infiniti EX Infiniti EX 2008

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2008 Infiniti EX repairs by problem area

Engine (25%)

Transmission and Drivetrain (2%)

Brakes and Traction Control (1%)

Suspension and Steering (13%)

Electrical and Air Conditioning (31%)

Paint, Rust, Leaks, Rattles, and Trim (21%)

Other (7%)

Chart based on 254 repairs.
See TSBs and recalls for the 2008 Infiniti EX.

2008 Infiniti EX engine repair cost distribution

$2500+ (2%)

$1000 - $2499 (10%)

$500 - $999 (14%)

$100 - $499 (24%)

< $100 (50%)

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

Chart based on 50 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Infiniti EX

Engine not specified

6200 mi Humming noise at start up, fuel pump replaced.  

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2008 Infiniti EX 4dr SUV

297-horsepower 3.5L V6 5-speed shiftable automatic RWD

4000 mi Noticed a noise coming from rear of vehicle at startup. Immediately diagnosed and fixed a dealership within 2 hours - required replacement of fuel pump. Apparently a known problem. Repair successful. 
110700 mi

US $900
Radiator ruptured during normal driving conditions. Stopped when saw temp high, then noticed losing coolant. Took one day for part to arrive from Infiniti (dealer only part). Radiator replaced with new unit. Back on road with no issues. 
211000 mi

US $200
Radiator Hose bracket broke causing immediate loss of coolant similar to a blown hose. Had the vehicle towed to the shop where the problem was diagnosed and repaired on the same day. Back on the road with no problems. 
102000 mi The car intermittently stalls on start up. Went to mechanic, he pulled codes; however, unable to diagnose issue. Will keep you informed. 
64700 mi

US $100
radiator 
59000 mi

US $1900
Gas tank partially detached 
62500 mi

US $200
Sensor malfunction 
16000 mi Bad fuel pump. Originally replaced approx. 3 months earlier due to recall/TSB. Replacement pump failed. 
32000 mi Radiator leak on fitting. 
80000 mi

US $12
Shop diagnosis new radiator required $700 
56300 mi Driving on freeway and check engine light came on and car jolted. Turned out radiator blew out, there was also a leak in radiator hose. 
15000 mi Service engine light came on. R and r evap vent valve due to leak. 
1000 mi Coolant leak due to faulty clamp. They replaced clamp and installed new lower radiator hose. 
3000 mi Defective fuel pump replaced. 
57400 mi

US $800
New radiator 
99000 mi Oil pan leak 
5000 mi Funny sound when car started, know fuel pump issue. Changed without any problems. 
3000 mi Fuel pump making moaning noise. Replaced with updated fuel pump identified in TSB. 
27000 mi

US $1033
Radiator replaced. 
19000 mi Fuel pump that "moaned" during start-up was replaced (TSB) 
Loud vibrating/humming noise when starting auto. Replaced fuel pump. Second fuel pump replacement, still unsuccessful. 
1000 mi Third fuel pump replacement, still unsuccessful. Fourth fuel pump replacement, still unsuccessful. 
2000 mi Fifth fuel pump replacement finally eliminates noise. 
11000 mi Noisy fuel pump replaced. 
8000 mi Had the noisy fuel pump replaced. 

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2008 Infiniti EX 4dr SUV

297-horsepower 3.5L V6 5-speed shiftable automatic AWD

100000 mi

US $700
I had to have the radiator replaced. 
88000 mi

US $300
IDLE 
87000 mi

US $600
Car overheated. Found hole in radiator, which leaked out all the coolant/antifreeze fluid. Had to replace radiator. 
56900 mi

US $125
Motor stopped immediately after starting, and acts as if it is going to kill upon stoping at stop light, but only very occasionally. Throttle body cleaned, another component serviced. Symptoms continue, but only very occasionally. 
167000 mi

US $119
Gas pressure warning, resulted in needing a new gas gap. 
96000 mi

US $10
Cleaned air intakes and MAF sensors and did a reset of the ecu. 
102300 mi

C $360
Cooling system. A persistent small leak in the radiator somewhere near it's center right side. Replaced radiator with a premium one bought online. Usually a such a repair is easy... just take off a bit of shielding on the top, a few screws and lift out the rad. BUT with the EX35, we had to get at everything from the front... remove the entire front grill, cross bars, remove the A/C lines and evaporator TOO! (had the CFCs / Freon captured by my mechanic for $C45 (friendly to the environment!). Both the A/C compressor from last year and the radiator are working fine after many months. Have to recharge the A/C soon... summer is coming. Happy I have the evac pump, gauges and freon already. 
123380 mi The Check Engine Light started coming on randomly over the last year. Each time is was the same OBC error OBD code P2A00 - A/F Sensor 1 Bank 1. It would clear itself after a few days, but then not so I erased it. Now the light returned all the time. I will change now change the sensor and report back on the next cycle. 
184760 mi

C $5800
Roadside Assistance put DEF (Diesel Exhaust Fluid) into gas tank when I ran out of gas on the road. Urea crystals everywhere in the fuel system. They paid the CDN $5800 to flush tank, 2 new fuel level sensors, new fuel lines and all new injectors. NOT THE FAULT OF THE INFINITI... and OOPS by a young tow truck operator. 
95480 mi

C $1100
radiator leaked 
120000 mi

US $1000
radiator leak stalling 
122000 mi

US $630
Radiator replaced due to leak 
89200 mi

US $170
Radiator side tank leak,non repairable. Replaced with new one 
1000 mi Fuel pump made noise on start up. 
14000 mi Fuel pump makes high pitched whining noise. Replaced by dealer for free. 
4340 mi

C $310
Fuel pump excessively noisy. 
17000 mi

US $550
Fuel pump whining noise 
26500 mi

US $170
Car engine would shut off at low speeds Fuel pump noisy. Replaced under TSB 
37000 mi Check Engine Light came on. Required dealer to tell me the gas cap had a vapor lock problem that required removing and replacing the same gas cap. 
4000 mi Needed a new fuel pump since had the dreaded moan on start-up. Never had it replaced. Had an unusual moaning sound when first driven and making a turn. Dealer said he had two demos which did the same thing but Infiniti had not identified the cause. 
1860 mi Rattling heat shield corrected by replacing center exhaust tube. Groaning noise during startup, traced to defective fuel pump - replacement ordered. 
2480 mi Noisy fuel pump replaced. 
Fuel pump making humming noise 
4000 mi Replace fuel pump due to noise at start-up 
77000 mi

US $388
Car would start and cut out 1 second later. Had it towed to a shop, and they found both throttle bodies were jammed up. Cleaned them and it seems to have fixed the problem. 
18600 mi

C $762
Car started running rough as if running on 3 cylinders. I had it towed to the dealer (additional $75). Replacing the spark plugs fixed the problem, but iridium plugs should last more than 30k especially on a car used only on the highway. 
3000 mi fuel pump replaced 
18800 mi Dealer also noticed that my plate baffles were bad and needed to be replaced. 
9000 mi Fuel pump was bad . Making a funny noise suddenly 
75000 mi

US $320
timing sensor 
82500 mi Per TSB engine timing had to be reprogrammed. No charge. 
45000 mi

US $1100
Left bank valve timing sensor failed. 

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2008 Infiniti EX 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 2008 Infiniti EX problems occur, check out our car reliability stats.