1999 GMC Yukon 4 wheel drive problem

Tiny
SNOOPYGIRL
  • MEMBER
  • 1999 GMC YUKON
  • V8
  • 4WD
  • AUTOMATIC
  • 133,000 MILES
It goes in and out of 4wheel drive on its own while driving. Also, occasionally when at a stop light, when I accelerate the back wheels can be sluggish. Like they are trying to engage or something. While driving, at times, it seems to chug. The only button that lights up is 2Lo but it goes on and off. Most of the time, no buttons are lit.
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Monday, July 6th, 2015 AT 10:17 PM

1 Reply

Tiny
HMAC300
  • EXPERT
Scan for codes first may be a tcm problem.
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Tuesday, July 7th, 2015 AT 6:46 AM

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