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Question

I have a Hummer H2 and the airbags have been deflating most of the time, but sometimes they stay up, also my speedometer is not returning to zero when I turn it off, stays at 20 to 80 to start off in the morning. Thx Mike

Submitted: 24 days and 15 hours ago.
Category: Car
Value: $23
Status: CLOSED
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Optional Information

Year: 2003
Make: Hummer
Model: H2
Engine: 6.7

Already Tried:
Sprayed the air lines and air bags with silicone, I haven't tried anything on the speedometer other than hitting the dash real hard. Mike

Accepted Answer

Hello Mike!
Thanks for choosing JustAnswer.
My name is Vladimir.
Some air leaks could be found in the compressor or valves connections.
Throughly inspect the air suspension compressor and all components& lines in that area. Spray it with water while listening and observing for hissing/bubbling.
Regarding your speedometer issue:
These GM's instrument panel clusters use gauge stepper motors that tend to fail. It is a very common issue with many GM's vehicles.
You can:
1) Replace your Instrument Panel Cluster with a new one.
2) Replace your IPC with a used one.
3) Have your IPC repaired
4) Repair the IPC by yourself. You will need a GAUGE STEPPER MOTORS kit, a soldering iron, some experience, a scan tool to recalibrate the gauges after motors replacing.


Edited by Vladgmru on 10/28/2009 at 3:29 PM

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Expert: Vladgmru
Pos. Feedback: 100.0 %
Accepts: 
Answered: 10/28/2009

Automotive Electrician

I've been working with American made cars since 1992.

24 days and 14 hours ago.

Reply

Sometimes I can hear a loud hiss on the driver side air bag when I turn off the vehicle. Other times it is fine, no hiss but and the air bags stay up.
Thx for all your help!
Mike

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