2008 Hummer H3 Repair and Maintenance

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

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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.

Service transmission every 30,000 miles
Our technicians highly recommend that the transmission is serviced every 30,000 miles to avoid problems and maintain optimal operating order.
Engine Misfire Due to Worn Valve Seat

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.

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2008 Hummer H3 Questions

how to do I remove the dashboard, and re-ground the A/c blower and control modul (1 answer)

what does the ground look like.

i seen a price on here for brake pads parts and labor, but how much should it be for brake pads and rotors replaced on the front end of a hummer h3 2008? (1 answer)

Hummer temp guage goes up to 3/4 when at idle for a while but drops when driving (1 answer)

Thermostat + radiator changed ,antifreeze flushed and replaced, mech states bad guage any ideas what this may be I hear it's common in hummers? The guage stays half way while I drive goes up to 3/4 at idle never goes over never boils over, clutch fan does not have excessive play , please help...

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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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