2005 GMC Envoy shift

2005 GMC ENVOY
105,000 MILES • 6 CYL • 2WD • AUTOMATIC
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SHY2007@NETZERO
  • MEMBER
  • 2 POSTS
it will shift out fine and then it will down shift
Oct 25, 2008 at 1:34 PM
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DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS
Can you be more specific please. When it happens, driving conditions, transmission hot or cold, etc.....
Oct 26, 2008 at 7:01 PM
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SHY2007@NETZERO
  • MEMBER
  • 2 POSTS
hot driving condition it will not shift in to high range the rpm wil rev up.
Oct 28, 2008 at 6:20 AM
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DENNYP
  • CERTIFIED EXPERT
  • 1,824 POSTS
Have it scaned for any trouble codes first. Post any codes for us.
Oct 28, 2008 at 8:18 AM