Problems for specific Chevrolet Avalanche 1500 years:

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Most reported 2003 Chevrolet Avalanche 1500 problems

 

Verified for the Chevrolet Avalanche 1500

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.

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Verified for the Chevrolet Avalanche 1500

The anti-lock brake system (ABS) pump may stay running after the ignition is turned off causing the battery to go dead. Our technicians tell us that the ABS control module should be replaced to correct this fault.

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Verified for the Chevrolet Avalanche 1500

The battery may leak acid at the battery cable connections. As a result corrosion may form on the battery cable ends. Leaking batteries should be replaced and the cables need to be thoroughly cleaned or replaced if necessary.

2 Reports
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Verified for the Chevrolet Avalanche 1500

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.

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