2003 Chevrolet Blazer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Blazer

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.

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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runs great cold until it warms up then it misfires at idle only... goes away as soon as you drive down the road... smooth idle cold but as soon as it warms up that's when it misfires at idle .... runs good and drives fine otherwise.... i noticed trim is running over 10%+ on one bank (one side...

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Vehicles may have an air bag warning label with incorrect statements. This is against the Federal Motor Vehicle Safety Standard. Owners will be sent corrected labels and installation instructions. The recall began June 4, 2004. The GM recall number is 04021.

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