2003 GMC Envoy "defrost" Questions

my envoy idles up and down when i turn my defroster is on it only happens when the defroster is on When you place your controls on defrost it turns your air conditioner on - depending what the heat ...

...sensor needs to be replaced and/or the sensor can be reset by simultaneously hitting the Mode, FT Defrost and rear defrost. I purchased a GM part # 15047946, a sensor, but it does not look like the ...

When I cut on defrost it stalls the motor out... $7 fix. This is a symptom of your battery being disconnected or replaced recently. The defrost uses the A/C to dry the air, so it will happen when the ...

...stalls when i run the heater and a/c It will tend to stall when you have the A/C on and or the defrost, not the heater correct? The defrost uses the A/C to dry the air. The battery was probably ...

where is the fuse for rear window defroster on a 2005 envoy? located in the back . It's called the LGM fuse #2 (Lift Gate Module) The Lift Gate Module controls the defroster grid circuit.

can't swith vent from defroster to vent can't swith to vent so i can run air the switch where you turn it to blowing at your head is probably out. you will need to replace the switch control where ...

Dash vents will not blow air. Defroster and floor vents blow fine. Dash vents will not blow air. Defroster and floor vents blow fine. Is it a new vehicle? I had a new vehicle that had the same problem

gmc ac problems I had the same problem on a ford F350 bunch of stuff had fallen through the defrost and was stopping the actuator door from working properly.  you would be amazed at the stuff ...

2003 envoy ac blows cold from defrost and floor but will not dash Just had the thermostat, coolant and serpentine belt replaced. Now the AC will not switch between the floor, defrost, and dash vents. ...

changed battery and now a/c vents won't work, air blows out defroster and floor only. i believe the controls are vacuum operated. when changing the battery, you most likely, however inadvertently, ...