2003 Chevrolet Blazer Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Chevrolet Blazer
2003 Chevrolet Blazer Problems
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.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
2003 Chevrolet Blazer Questions
My 03 blazer engine light came on...scanned it bank 1 sensor 1 changed it with new one reset it..next day light came back on...po1035...checked fuse good..what wires and what voltage from the truck sides connector??
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...
2003 Chevrolet Blazer Recalls
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.