Altima 3.5 hesitation.

[Bladecutter]

The car has 173k miles on it, and the plugs haven't been changed since 92k miles.
You need to start with replacing the inexpensive spark plugs, first.

Cleaning the MAF sensor isn't a bad idea.

I vaguely remember mention of an intake or EGR crossover tube on the 3.5 engines that if the cat convertor was breaking up, it would plug. This is where I would start looking in order to check the health of a 3.5 Altima.

BC.

 

[Volv04Life]

Originally Posted By: Bladecutter
The car has 173k miles on it, and the plugs haven't been changed since 92k miles.
You need to start with replacing the inexpensive spark plugs, first.

Cleaning the MAF sensor isn't a bad idea.

I vaguely remember mention of an intake or EGR crossover tube on the 3.5 engines that if the cat convertor was breaking up, it would plug. This is where I would start looking in order to check the health of a 3.5 Altima.

BC.


Im doing the plugs this weekend. Btw, they arent cheap. Its $40 for the plugs minus $10 rebate and I have to replace the intake manifold gasket which is $50. sigh...