2007 Hummer H3 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2007 Hummer H3
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2007 Hummer H3 ProblemsWorn Valve Seats May Cause Engine Misfire
The fuel level sensor in the fuel tank may fail causing erratic fuel gauge operation. Our technicians tell us that on high mileage vehicles you may wish to replace the complete fuel pump module assembly if this condition occurs.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
2007 Hummer H3 QuestionsHas leaking from top of tank, suspect tube from pump, but all diagrams I see show the "T" fitting I think is cracked is part of gas tank, confused because diagram shows tube attached to removable fuel pump system. (1 answer)
I've heard of a key problem with these cars. Any ideas?
2007 Hummer H3 RecallsHeater And Air Conditioning Fan Speed Control Overheats
The connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat, causing a fire hazard. Dealers will replace part of the blower motor connector and harness free of charge to resolve the concern.
The retaining clips on the non-functional hood louver could brake. The louver could become loose and/or separate from the vehicle. If this were to happen while the vehicle is in motion, personal injury or property damage could result. Dealers will apply adhesive to the underside of the hood louver to secure it. The recall is scheduled to begin on April 12, 2010. The General Motors recall number is 10088.