Engine complaints by model year
Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
What owners report
Runaway acceleration. Three times now in the last two weeks the RPMs went to maximum redline without my foot on the accelerator pedal. Fortunately all occurred when I was at very slow speed and either in a driveway or a parking lot. Each time I immediately put the transmission to neutral and shut off the engine. For the first occurrence, Restarting the engine all went back to normal. But for the second instance, two weeks later on restart the engine again instantly went to maximum RPM (deep redline). On a second restart, with additional delay before attempting a restart, the problem cleared. I took the car to a mechanic and they said no error diagnostics were recorded. On test drive he said he noticed some brief unexpected surges. He said for liability reasons no way he would work on the car. No warnings, no instrument indications, car does not seem to "know" throttle is at max redline.
Almost daily stalling at low speeds. When coming to a slowdown, the vehicle will stall with no error codes or lights given except for power completely turning off. This has resulted in numerous near misses since steering is then not powered and at times in the middle of an intersection. Restart is possible by putting the car in neutral and restarting. I worry that this can cause a wreck when stalling in the middle of the intersection with traffic coming. At times, when coming to a slowdown, the car will stutter as if rpms drop very low but does not stall. The stall and near stall happens frequently.
The contact owns a 2007 Infiniti G35. The contact stated that while operating the vehicle, a ticking noise was present coming from the engine compartment. While her son was driving approximately 35 MPH, the vehicle suddenly stalled. The vehicle was towed to the dealer who diagnosed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 180,000.
I was at stop light and G35 jolted. At the next light the car completely turned off and all the power of the car went dead. Nothing was lit at all. Had a power boost with jumper cables and the car started right up. Luckily I was a few blocks away from the house, but it was scary since my kids were in the car and the car turned off crossing the intersection. The car turns on, but I am not trusting in driving it anywhere. There is not check engine light on or warning. I was told battery was fine a C1109 code came up, stating low voltage. Possible issues with the ABS or crank position sensor, which under o1v357 recall, these cars were impacted, but this Infiniti was not included, and it should have been. I exclusively took auto to Infiniti for maintenance until around 2018 and I never had them mention anything to me about these issues.
Excessive engine oil consumption. The vehicle has 148K miles. This problem has resurface many times in the past and I get a warning that the vehicle need to be service. Each time the dealer informed me that the oil level was low and after they add oil and reset the warning it is fine until the oil again goes below the safe level. The car has been maintained by the same dealership since it was purchased. On the last previous services due to this issue I been told that the engine needs to be replace. Navigating the internet I have found various similar complains from customer were the dealer has replaced the engine. …
Tl* the contact owns a 2006 Infiniti G35. While traveling approximately 30 MPH, the vehicle suddenly stalled and the service engine warning lamp, slip warning lamp, and vdc off warning lamp illuminated. The contact was able to pull the vehicle over, turn off, and restart the vehicle. The vehicle was not included in NHTSA campaign number: 03V455000 (engine and engine cooling). The vehicle was taken to an authorized dealer where it was diagnosed that the crank (camshaft) position sensors needed to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 161,218.
The contact owns a 2005 Infiniti G35. The contact stated that the seat failed to recline. The service engine light was illuminated. Upon investigation, the contact linked the failure to NHTSA Campaign Number: 10V175000 (Air Bags, Seats). The vehicle was taken to an independent mechanic who determined that the cause was a faulty fuse. The fuse was replaced, but the failure recurred. The contact called the local dealer, who confirmed the recall repair was previously completed. The vehicle was not diagnosed or repaired. The contact called another local dealer, Douglas Infiniti (430 Morris Ave, Summit, NJ 07901), but there was no response. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 190,000.
The contact owns a 2005 Infiniti G35. The contact stated that while driving at various speeds, the vehicle locked up and stalled on four occasions. The contact was able to restart the vehicle. The check engine and slip warning lights were illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to NHTSA. The contact researched the matter and stated the failure was due to a possible camshaft failure. The approximate failure mileage was 130,000.
Related recalls (1)
Engine and engine cooling
On certain passenger vehicles, the circuit board for the crank position sensor or cam position sensor May have an improper solder joint due to solder deformation caused by heat stress accelerated by the existence of flux residue during the soldering process.
Remedy: Dealers will replace the crank position sensors. Camshaft position sensor(s), and in some cases, the variable timing control sensor(s).
Frequently asked questions
Which Infiniti G35 years have engine problems?
By NHTSA complaints, the 2003 (122), 2004 (63), 2005 (56), 2006 (35) and 2007 (18) model years. Engine complaints make up 23% of all complaints for the 2003.
Is there a recall for Infiniti G35 engine problems?
Yes — 1 recall, including 03V-455 (engine and engine cooling, Nov 17, 2003). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Infiniti G35 engine problems start?
Across all years, half of the complaints with a recorded mileage happened before about 85,000 miles; 23% happened before 50,000 miles.
What part fails most often?
Owners most often name the engine (37 mentions), followed by the cooling system (7).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.