Hesitation from stop

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Aug 14, 2010 | 11:53 PM

staticki

Thread Starter

Burning Brakes

Joined: Dec 2007

Posts: 1,249

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From: Dyer IN

Hesitation from stop

So I am sitting in traffic today from neutral shifting into 1st and notice the exhause note changed to more of a clunking sound. Giving it a bit of gas it gave me a slight hesitation for a few seconds then went away. Then, on the same drive, I was crusing around a corner in 4th and it did the same thing (exhaust note change and hesitation for a few seconds) and went away.

Any ideas?

Car is a 06, 64k, new oil/plugs/plug wires, and z51. Only mod is full exhaust from headers back.

I am guessing a tranny oil change and dif change is in order, but anything else I should look for?

Aug 15, 2010 | 06:46 PM

Mez

Safety Car

Joined: Jun 1999

Posts: 3,570

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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas

Quote:

Originally Posted by staticki

Sounds like knock retard. Look for exhaust pipes or headers knocking around against each other or frame which will trigger the knock sensors.

Aug 16, 2010 | 02:37 PM

staticki

Thread Starter

Burning Brakes

Joined: Dec 2007

Posts: 1,249

Likes: 31

From: Dyer IN

Quote:

Originally Posted by Mez

Sounds like knock retard. Look for exhaust pipes or headers knocking around against each other or frame which will trigger the knock sensors.

I checked all pipes and it looks like everything is clear (looking for scrapes, scratches, or dings). Thanks for the reply.

Aug 16, 2010 | 04:51 PM

Mez

Safety Car

Joined: Jun 1999

Posts: 3,570

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From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas

You have to grab and shake the muffles and pipes to see if they hit the frame or each other. My mufflers hit each other and rubbed against the rear floor heat shield behind the axle.

Last edited by Mez; Aug 16, 2010 at 05:58 PM.

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