2008 Envoy Denali
That's the air compressor for the leveling system
SOURCE: rear seat fuse box in 7 seater 2006 GMC envoy denali
Rear fuse box is under the seat bottom, rear seat (middle row) on the driver's side. There is a plastic cover over the top of it that snaps into place.
SOURCE: Front End Rattle
I am guessing it is still under the factory warranty. Take it to the dealership and have them fix it for free.
SOURCE: 2007 envoy denali stabilitrak turns
Hi.
There are many possible reasons while the car will shut down at cold , or when idling or slow.
A good thing to do would be going to the nearest Autozone and doing an error code scanning on the engine. This is free of charge, and will tell you if there is any error codes stored in the car computer.
I will try to summarize possible causes for your problem. I will list only common faults that can cause the car shutting down when you press the pedal after idling.
Air flow problems:
This commonly affect the engine when this is cold.
Check air filter, air intake, MAF (mass airflow) and IAT (intake air temperature). This problems are more noticeable when the engine is cold.
Vacuum problems:
The vacuum system uses recirculated gases in your engine. A vacuum leak or a bad EGR valve can give you troubles, particularly when idling. Vacuum system is tested using an hand tool gauge.
Injection and fuel system:
A malfunctioning fuel pump, a clogged fuel line, or an injector problem may be causing the fault. Pump and lines are tested using the same hand gauge used on vacuum system
Distribution and spark plugs:
If this is the problem, then the engine is shutting down because of misfire. You will get engine warning light on, and the misfire will be reported after doing an error code scanning. When you have distributions problems you can also easily feel that the engine is not running as it should.
Transmission problems.
An automatic transmission malfunction can cause the engine to shut down when you push the pedal. When this is the problem you realize that the cause is the transmission, and that the wrong gear is on.
Other electronic troubles (ECU , wiring, etc)
The best thing to do is trying to understand in what of the condition above you may be, eventually stop at the nearest Autozone and ask a free OBDII scan, or come back to us with a more detailed description of your problem symptoms. OBDII scan can also be done using an hand tester.
Regards.
SOURCE: how to remove rear suspension airbags on 2006 gmc
they are bolted in a not to hard to remove once the air is drained from them however you can not drive it without the air bags. It will bounce way to much to control the truck.
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