knock sound and vibration when turning in circle .

knock sound and vibration when turning in circle .

Postby jgibson2980 [OP] » November 1st 2013, 6:05am

Hey everyone im new here and I just purchased an 1999 awd cargo astro. when I turn the wheell all the way to the left or right and drive in a circle the van start to make knocking noise and vibrates some . feels like some thing may be in a bind but I dont know know . so any help or ideas thing to look for that could be the problem would help
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Re: knock sound and vibration when turning in circle .

Postby Jasen » November 1st 2013, 10:18pm

Welcome to A/S

What condition are the tires in. Even wear on all 4, all the same brand and size, what size.

edit

Oh and check the rubber splash shield in the wheel well's, one could be loose, also check the bumper mask, the metal stay rod could be bent or popped loose
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Re: knock sound and vibration when turning in circle .

Postby jgibson2980 [OP] » November 2nd 2013, 3:00am

I researched the forum and it sounded like it may be the transfer case fluid . So i drained and changed it Im going to run it for 100 miles and then change again . IT has mad i ton of difference and I believe that to be the problem .
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Re: knock sound and vibration when turning in circle .

Postby thegreenmachine » November 2nd 2013, 3:01am

Change your transfer-case fluid with fresh autotrac II.

There was a service bulletin about issue you're describing. The solution is to change the tcase fluid. Drive 100 miles. Change it again.

I had the same prob.


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