[Mo Bill]

You mean if the vacuum drop coincides with the increase in STFT? What diagnostic information will it provide?
The LTFT on the car is 0 and the STFT oscillates between -4 %to 6% during idle.

Thank you for your reply.

[Mo Bill]

Okay, so here’s what I’ve found while trying to recreate the noise-

The car makes a grinding/screeching noise while revving (not when cold, after driving for sometime on freeway). As this happens while in Park also, I am assuming its not the cv. Could it be from one of the pullys of the serpentine belt assembly?

[Mo Bill]

[quote=”shaun” post=163211][quote=”mbill002″ post=163206]Sorry, I forgot to mention this happens only when I’m accelerating. So, I am assuming its not the wheel bearing.[/quote]

You accelerate getting off the freeway? Your first post makes it sound like a bearing. Your 2nd post contradicts your first. But maybe your cv’s while under load[/quote]

Thank you for your reply. I don’t accelerate getting off the freeway, I meant to say after getting off the freeway, when I accelerate, I hear the sound.

[Mo Bill]

Sorry, I forgot to mention this happens only when I’m accelerating. So, I am assuming its not the wheel bearing.

[Author]

Replies