I replaced the compressor on my 02 Envoy because it no longer had power and quit working. l still have no power and there is nothing wrong with the fuse any ideas
The load leveler sensor operates the compressor. It most likely is malfunctioning. It is located on the rear drivers side lower control arm.
SOURCE: 2003 GMC Envoy lower 3 heater fan settings quit working.
had same problem on my XUV. changed the blower motor resistor, located under passenger side dash. easy to change, works no problem.
SOURCE: need fuse box diagram 2002 gmc envoy
If I remember correctly if you look at the back side of the fuse cover, it should tell you what the fuses are. Also in the owners manual in the index, under fuses, it should give you a diagram of the fuse location for the acc. outlets. Good luck. The fuse should be a 20 or 25A fuse.
SOURCE: Removing rear air suspension on GMC Envoy
Just behind right rear tire up in the wheel well. Air inlet is inside right rear quarter near the accessory inflator. Compressor runs 3 lines one for the accessory inflator and one for each air bag.
THere are also 2 sensors, one on each trailing arm that senses load and then raises and lowers accordingly.
SOURCE: how to replace ambient air sensor on 02 envoy
This is very easy, its locate on the left center of radiator support, if lay under front bumper you will see, but first open hood and look to see it you can get it from the top tis bolted or cliped to readiator support, just unplug connector and remove bolt and out it comes, hope this helps.
SOURCE: 2003 gmc Envoy Low Beam Headlights both quit at
Relay in fuse box under hood on driver side wheel well labeled HDM, #46 on 2004 Envoy XUV. Swap with relay #45 labeled "Fan" to test. That was my problem.
Good Luck,
Sam
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