1991 Chevy Astro Steering Wheel moves while driving - van s

Tiny
SARACHOPSTIX
  • MEMBER
  • 1991 CHEVROLET ASTRO
Steering problem
1991 Chevy Astro 6 cyl Automatic 250000 miles

My Astro van runs alright considering how old it is. I've had it for a year and a half now and there has always been this steering problem. While driving in a straight line, the steering wheel turns right and left on its own but the van stays straight.

I am about to move from FL to the north and am worried about a long haul like that and the steering problem. Granted, when I moved down here from up north, it had the same problem. But I'm worried that an additional 1200 miles might cause a real problem.
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Friday, November 28th, 2008 AT 6:12 PM

3 Replies

Tiny
DOCFIXIT
  • EXPERT
How much movement? Is it more like a vibration? Can you keep wheel from moving with a tight grip?
With van sitting how far do you turn wheel before tire moves?
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Saturday, November 29th, 2008 AT 9:44 AM
Tiny
SARACHOPSTIX
  • MEMBER
When the van is turned off there is not much movement in the steering wheel. It's when I am driving. While I am driving, theres about 4 or 5 inches of play, left and right - but the van stays in a straight line and doesn't veer (like if the alignment was off and it would veer to the side).

A tight grip does not make a difference. It's not like I am losing control of the van. Its almost like the steering wheel wanders.

And its def. Not a vibration.
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Saturday, November 29th, 2008 AT 12:08 PM
Tiny
DOCFIXIT
  • EXPERT
Check steering shaft coupler the u-joint may be worn causing freeplay. Also have thrust bearing preload checked and over-center preload.
If problem is bad coupler joint if it fails you may loose steering.
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Sunday, November 30th, 2008 AT 1:10 PM

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