2008 Hummer H3 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2008 Hummer H3

2008 Hummer H3 Problems

Check Engine Light Due to Gas Cap Issue

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Worn Valve Seats May Cause Engine Misfire

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Replacement of the cylinder head may be required to correct this concern.

Fuel Level Sensor Failure

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.

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2008 Hummer H3 Recalls

Heater 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 Hood Louver Could Detach from the Vehicle

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.

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2008 Hummer H3 Reviews

Would buy another in a second...great vehicle.....Gets about 17MPG overall with standard driving with V8

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