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Vacuum

Tiny
RNDYMN
  • MEMBER
  • 2005 GMC ENVOY
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Can a vacuum problem cause 4wd not to engage and ignition not to function some times ( crank shaft position )
Sunday, January 31st, 2016 AT 1:16 PM

2 Replies

Tiny
CATAFINA
  • MECHANIC
  • 168 POSTS
If its not starting up could be the crankshaft position sensor, for the vacuum I doubt it on the 4WD
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Sunday, January 31st, 2016 AT 2:51 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Make sure your anit theft isn't engaged for no start. If no manual look online
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Monday, February 1st, 2016 AT 7:07 AM

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