2003 GMC Envoy Problems

RepairPal has identified the most common problems with the 2003 GMC Envoy as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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28
Known 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.

On certain 2005 - 2007 vehicles, General Motors has provided a special service policy covering the fuel level sensor, agreeing to pay 50% of the repair cost. This coverage extends for 10 years or 120,000 miles from the original "in service" date of the vehicle. Please contact your local GM dealer for more information.

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The cooling fan clutch may fail causing excessive fan noise and/or the Check Engine Light to illuminate.

The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

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.

The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.

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

On vehicles equipped with rear air springs, the air compressor may fail causing the rear suspension to sit low.

The electrical contacts in the ignition switch may fail and result in erratic instrument panel gauge operation or illumination of the Check Engine (SES) Light.