Question about 2004 Chevrolet Avalanche

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2004 chev avalanche---4 wheel drive kicking in

On my 2004 avalanche the 4 wheel drive has been engaging automatically when I am in 2 wheel drive on dry pavement----does it without warning and sometimes will not disengage----have to go to 4wd auto, then try to get 2wd-------------faulty sensor? or connection?


Thanks
Bill Smith

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  • Chevrolet Master
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Possibles--chech and test 4wd / transfer case module --faulty switch --- transfer case failing

Posted on Dec 23, 2017

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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justuscc

Jimmy

  • 360 Answers

SOURCE: 4wd problem with 2004 chev 1500

the control module they often go out good luck

Posted on Sep 20, 2008

Anonymous

  • 1 Answer

SOURCE: 4 Wheel drive not engaging.

After finding a vacuum line that was off from the auto body shop that never was reconnected , after they removed it when they replaced the left side fender from a crash. Reconnected it and now it works. It was hard to find. Due to it is located below some other componets and wires.

Posted on Dec 29, 2008

MikeRenee

  • 69 Answers

SOURCE: noisy in 4wd quiet in 2wd

Sounds like the transfer case may be low on fluid. Does it do it in 4 high as well as 4 low? if so then its either low on fluid or its on its last leg. It just takes normal automatic trans. fluid if I remember correctly. It should have a drain plug on the bottom and a fill/check plug up towards the top a little ways from that.

Posted on Mar 23, 2009

csmock132

Clint Smock

  • 4669 Answers

SOURCE: chev 4wd problem

You need to have it scanned. It sounds like a bad speed sensor in the transfercase.

Posted on May 03, 2009

Anonymous

  • 1 Answer

SOURCE: 4wd engaging without warning

check your transfer case motor

Posted on May 17, 2009

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4wd engaging without warning


check your transfer case motor

Apr 21, 2009 | 2004 Chevrolet Avalanche

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