When i try to turn it on sometimes it i have a hard time to get it to start and sometimes i dont. it doesnt seem to be a difference if is cold or if i driven it for a while.
If you live in a very cold region of the world like I do and own a GMC Envoy you will know these vehicles are awful in cold temperatures (-30C and colder). Every winter the vehicle refuses to start, the reduced engine power light turns on and a GMC mechanic gives me a bs excuse for why its not starting. The simple answer is that this vehicle is awful in the cold. When this happens and hopefully it happens at home, I have to get my forced air kerosene heater out,put it under the engine bay of the Envoy, open the hood and tent it with a tarp and let the engine "thaw-out" for about 2 hours, you can also put the vehicle in a heated garage but that takes about 8 hours to thaw that way. There is NO OTHER way to fix this problem. I emailed GM about the problem and their only response was to ask for the VIN number and the name of the 'GM certified' mechanic I was taking the vehicle to. All a load of bs from GM....they know this is a problem and won't do anything to help fix it. My next vehicle will not be a GM while I live in the North
Darin
SOURCE: How to replace the headlights on my 2003 GMC envoy.
The headlights on the envoy are the easiest parts of the car to repair. You just pull the two tabs at the top of the headlights, screw out the bulb containers and you are good to go
SOURCE: 2003 gmc envoy xl brake lights dont work
sounds like a fuse look under the dash panel for fuse cover look at the back of cover and check that fuseThanks for using fix ya Please rate my response thank you very much
SOURCE: 2003 GMC code P0128
PO128 insufficient ambient temperature.your thermostat is either sticking open or you have the wrong temperature rating it should be 195 degrees.
SOURCE: GMC Envoy w/ code P0128
Start at $89 right off the bat just for diagnostics and then depending on what they find that is causing that fault, at LEAST one hour labor, plus parts....I would say $250 is a good ballpark figure....looking up your fault code now.
SOURCE: where is coolant temp sensor located on 2003 gmc
heres a diagram to show you where the coolant temp sensor is located, its behind the alternator on the left side (driverside),the sensor just unplug the connector and then unscrew it and out it comes.
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