2012 Chevrolet Express 3500 Problems

RepairPal has identified the most common problems with the 2012 Chevrolet Express 3500 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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3
Known Problems

The throttle position sensor (TPS) on the Chevrolet Express 3500 is notorious for failure which causes:

This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS.

To correct this issue, the wiring harness, connector, and throttle position sensor must be inspected, tested, and/or replaced. The most common cause is a faulty TPS.

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.

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.