Any Mr. Goodwrench will look at any GM vehicle.
As far a fixing it,,,that is a diff story.
If it is a part (common to the Colorado) or service(oil,tire,belt,air) they have or can get they will fix it. 80% of most issues
If it is a Hummer specific part or service you will have to go to a Hummer dealer. 20% of most issues.
HURF
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Restored \'82 Jeep CJ7 ,258,.40 over,,Comp Cam,,GM HEI,,Borla Header,,Weber 38,,T5,,D300,,D30,,4:56,,Detroit,,AMC20,,trussed,, Detroit,,Warn full floater,,trXus 33X12.5X15
Hummer Test Driver
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