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Old 09-21-2008, 05:56 AM   #1
mckenna77
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Join Date: Sep 2008
Member ID: 96311
Location: Cincinnati, Ohio
Age: 31
Posts: 1
2003 GMC Envoy
I need some help I have a 2003 GMC envoy. Yesterday my check engine light came on. I went to the local Auto Zone so they can check it on their computer. It said that the (COOLANT FAN SPEED HIGH). Wich nakes sence because when I hit the gas pedal you hear the fan speed up and as the RPM's slow down so does the fan. I was wondeing if anyone can give me some insight on what's going on.
Thanks,
mckenna77
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Old 09-21-2008, 08:23 AM   #2
wm-webb
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Join Date: Aug 2003
Member ID: 8488
Location: Illinois
Age: 48
Posts: 167
Re: 2003 GMC Envoy
Trialblazers/Envoys are known for bad fan clutches. You might want to go to http://forums.trailvoy.com/ and join. Mine would not lock-up, when I came to a stop the A/C would get warm and the truck would start to overheat.

Need to find a Dear Abby/Ann Landers forum and go there to talk about trucks.
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