2006 GMC Envoy P0128

2006 GMC ENVOY
79,000 MILES • 6 CYL • AWD • AUTOMATIC
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EFLYNN1959
  • MEMBER
  • 1 POST
what does it mean
Jan 28, 2010 at 6:59 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

This is a low coolant temp code, check that thermostat is not stuck open.

Mark (mhpautos)
Jan 28, 2010 at 7:36 PM
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