2006 GMC Envoy P0128

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