I've got this wierd chirping sound that gives my car a "jolt"

At first I thought I was running over a large dry leaf or something, b/c that's what it sounds like and feels like a wheel just slipped momentarily.

But now it happens like every 30 seconds in stop-and-go driving.


I've been able to reproduce this sound by going into 2nd gear to 3000 rpms or above, then engine breaking. The sound and 'jolt' comes around 2000 rpm decelerating.


I'm absolutely stumbped as to what could be the problem, can anyone help?


Much thanks,
Ambert

 

Is your AC turned on?

 

do u have stock muffler on?

 

HKS bov?

 

werd!

 

Leak!

 

1. yeah I had AC on. I'll turn it off now and see what happens.


2. yeah I thought it might be a BOV leak ( i have GFB), but it happens when my foot isn't on the gas, i dunno?

3. I don't have stock muffler, but I've got a dynomax custom unit. You guys think it might be clogged up?

Thanks!

 

I get a chirping and slip ocasionally when I have my AC on. its while the compressor is running, but it doesn't happen with the compressor going on/off.

 

Its your accessory belt slipping. Its either looser or maybe some oil dripped on it. I've had the same issue. It eventually went away... came and went a few times. I never adjusted the belt

jason

 

yeah it was because of the AC...wierd...

 

your windows were feeling neglected ne way

 

bet the rent on this...

 

My wife's car is in the shop for this...she was getting a fair jolt when the compressor kicked on. We'll see.