2007 GMC Yukon drop from 8 to 4 cylinders

Tiny
CHILDERSMAN
  • MEMBER
  • 2007 GMC YUKON
  • V8
  • 2WD
  • AUTOMATIC
  • 9,000 MILES
When my 2007 yukon drops out cylinders everytime it does it has a vibration, from 4 to 8 and 8 to 4. Is this somthing that more people has complained about.
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Thursday, February 21st, 2008 AT 6:52 AM

2 Replies

Tiny
JACK42
  • MEMBER
There are several TSB's (tech service bulletins) about injector problems and wiring problems with the injectors. Take it to the dealer, should still be under warranty. I havent heard any complaints about that, but it is stil a pretty new truck
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Thursday, February 21st, 2008 AT 7:56 AM
Tiny
BRIAN 1
  • MEMBER
There is a bulletin for this condition, you have to reprogramm the ecm and the tcm with the lastest calibrations.
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Thursday, February 21st, 2008 AT 7:30 PM

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