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Problems for specific GMC Savana 3500 years:

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Most reported 2003 GMC Savana 3500 problems

 

Verified for the GMC Savana 3500
Various electrical components under the front carpet/rubber mat may become damaged if excess water is used to clean the rear cargo area.
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Verified for the GMC Savana 3500

The tail light wiring harness in the cargo area is not protected very well. As a result it may become damaged due to normal wear a tear. This damage can causing some or all of the rear lights to stop working.

15 Reports
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Verified for the GMC Savana 3500

It is common for the fuel level sensor in the fuel tank read the fuel level incorrectly. The sensor must be replaced to correct the condition. Our technicians recommend having the complete fuel pump module replaced on high mileage vehicles.

14 Reports
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Verified for the GMC Savana 3500

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.

11 Reports
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Verified for the GMC Savana 3500

One or both secondary air injection check valves may become restricted causing poor air flow resulting in illumination of the Check Engine Light. It is often recommend to replace both check valves even if a fault code is set for only one bank of cylinders. Replacing only one valve may result in a return trip to the repair shop.

8 Reports
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Verified for the GMC Savana 3500

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

1 Report
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