Question about 2004 GMC Envoy
New radio was installed now my airbag light is on
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
Posted on Nov 15, 2008
The service engine light you refer to is telling you you have a problem with the computerrized engine control of the car.When the light comes the computer stores a numerical code that can be retrieved with a scan tool or code reader.If you are not experienced with diagnostics you need to take the car to a mechanic,because sometimes a code can fool you and you can change a good part.An example of this would be reading a code that the oxygen sensor is reading a lean condition setting the light on. but the real issue is a bad fuel pump not supplying enough fuel to the engine. On the code alone you would be inclined to change the sensor when it was not the problem.
Posted on Nov 26, 2008
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
Posted on Jan 31, 2009
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.
Posted on Jun 21, 2010
Ah the famous P0128.....It's 1 of 2 things. If your fan is not engaged constantly (would sound like an airplane or big rig everytime you step on the gas) and is working properly, that rules out the fan clutch. The other common problem is the thermostat. Replace the thermostat and the code will go away. Engine temperature needs to be at 210 degrees on these engines. If the fan clutch is constantly engaged, it's cooling the engine off constantly and won't get up to 210 fast enough. If it's the thermostat, it's stuck open and isn't allowing the coolant to properly heat up in time.
Posted on Feb 09, 2011
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