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2003 gmc sonoma dash lights going off and on air bag light won't g


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When I turn truck on the intrument lights on the cluster all go out except for the air bag light.But while driving all of the other lights come on and go out at will , the gas gage drops and shows empty the battery lights.the abs lights all the lights come on and go out randomly.Had the cluster checked and it is fine ,been checking grounds but have not found out anything yet.PLEASE HELP

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When you had the cluster tested did they pull the housing apart & check all of the solder points, etc?

Those clusters are known to have one in particular that fails over time...

 

Do you have the 4 cylinder or the 4.3L V6?

Have you run a scan tool to check for codes?

 

Also, try Blazerforum.com

Most of the information will apply to your Sonoma since much of it is the same anyway.....

 

YouTube is also an excellent source of diagnostic & repair videos....

 

If I find anything else of use I'll come back & post it....

In the meantime, if you figure it out please post what was causing it & what solved it.

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Just found this:

http://www.gm-trucks.com/forums/topic/100927-help-dash-lights-flickering-on-and-off-and-gauges-going-to-zero/

 

It doesn't list your particular model but the symptoms listed are pretty much the same...

Just testing the leads at the back of the cluster will not give a true reading.....

Have to take it apart & visually check everything...

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