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GMC Envoy rear air suspension

 
sergeantmajor sergeantmajor
New User | Posts: 2 | Joined: 05/06
Posted: 05/05/06
09:34 AM

I now have a 2002 Envoy low rider, but just in the rear.  The pump motor runs, but the rear does not raise.

It has been raining today, so I have not crawled under to see if there is a rupture in the bags or whatever the Envoy has.

I have been guessing what I might find.
1 Good motor, but bad pump.
2 Good motor good pump, bad fitting or hose.
3 Just a leaking air spring.

2002, 85,000 miles.

Any suggestions?  

LRE  

 
automotivejtm automotivejtm
Guru | Posts: 1019 | Joined: 03/06
Posted: 05/05/06
09:41 AM

All are good suggestions. i would start by looking for a leak.  

 
Johnswiftm Johnswiftm
Enthusiast | Posts: 658 | Joined: 07/05
Posted: 05/06/06
11:03 PM

Take a spray bottle of soapy water with you. You are probably find a hole in the air line.  

 
sergeantmajor sergeantmajor
New User | Posts: 2 | Joined: 05/06
Posted: 05/12/06
02:06 AM

Stranger than life.  I jacked up the envoy, droped the spare tire, fumbled with the lines.  Turned on the pump manually.  Sprayed the spring, fittings and line with soapy water.  I saw no leaks.

Lowered the envoy, and to my delight, it was back to normal.  I did not apply a wrench to the fittings, just fondled them.

Thanks for the suggestions.

SGM  

 

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