I have a 2007 FX35. It is a wonderful car. However, after the last dealer maintenance, the belts were squealing. I took it back and they repaired them quickly. The next morning and every morning since the car hesitates when starting and for a few moments runs roughly. Then it settles out and as long as it is warm it runs fine. I have had it rechecked and of course they have found no problems. The car is always warm when they test it and they tell me this should not make a difference. I have done some online research and found others with similar experiences. Can you help me?
Cars & Trucks - Infiniti - FX35 - 2007 Infiniti FX35
Answers & Comments
Hi, an engine hesitation is an interruption of continuous power during acceleration. When a engine is hesitating it will cause the car to lunge or surge during acceleration which will cause a sudden **** as the car slows down. A plugged air filter, clogged fuel filter and vacuum leak is a very common issue, while intake manifold and gasket is very common failure and 1st to check
The car should be examined before it warm up because in the case of a clogged fuel filter, once the car is warm, it will be difficult to know if it is clogged..
Check the intake manifold and gasket too.....