Offroad Trailblazers and Envoys

Service stabilitrak

Something not working right?

by Moots1288 » Sat Jan 12, 2013 11:58 am

I have had a on and off problem with a slight clunk when my truck is cold but it doesn't always happen, and I never happens when the truck is warm and only periodically after my truck has cooled down after a day of driving. Well today I heard the clunk and my service stabilitrak light came on and I'm wondering if anyone has any ideas of what I should look at first?
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Moots1288
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by v7guy » Sat Jan 12, 2013 12:14 pm

Slip yoke needs greased? Pop out the driveshaft and grease the slip yoke.
U joints ok? Crawl underneath and twist the driveshaft by hand, see if there is slack in em.
Double check that the suspension links in the rear are torqued down.

Steering wheel position sensor can cause the stabilitrak light to pop on occasionally
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by The Roadie » Sat Jan 12, 2013 1:03 pm

Could you describe with more detail when the clunk happens? Accel or decel? Coming to a stop? After a stop when the suspension relaxes and the rear sits down? Gear shift? Speed bumps? Turns or straight ahead?
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by Moots1288 » Sat Jan 12, 2013 1:51 pm

About 3 seconds after I start my truck I get the clunk
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