2012 Chevrolet Express 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2012 Chevrolet Express 2500

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2012 Chevrolet Express 2500 Problems

Check Engine Light Due to Loose or Worn Gas Cap

A loose or worn gas cap could be cause the Check Engine Light to illuminate.

Reduced Power and Check Engine Light

The throttle position sensor (TPS) on the Chevrolet Express 2500 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.

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2012 Chevrolet Express 2500 Questions

Have a misfire code on cylinder 3 tried sparkplug wires and was told injector . (1 answer)

Has a definite mis. Took to a shop they replaced the cat converter and still is not fixed they now say i nerd to replace lifters

radio and door chime are not working but its not the fuse. (1 answer)

after shutting off the ignition the radio and power windows should still have power until the door is opened or the timer runs out but there is no power. What the fuse could also be tied into that?

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2012 Chevrolet Express 2500 Recalls

Natural Gas Leak

Certain vehicles equipped to run on compressed natural gas are being recalled because the high pressure natural gas regulator could develop a leak, increasing the risk of a fire or explosion. Dealers will replace the natural gas regulator to correct this concern.

Insufficient Instrument Panel Padding

Certain vehicles are being recalled because if a crash were to occur not requiring deployment of the front airbags, the head of an unbelted front seat passenger could hit the instrument panel, resulting in personal injury because the panel may not sufficiently absorb the impact. As of this writing, General Motors is still working on a remedy for this concern.

Corrosion at Fuel Shut Off Solenoid

IMPCO Technologies installed a compressed natural gas (CNG) fuel system as original equipment on certain 2011-2013 full size GM vans. These vans are being recalled because the electrical connector on the fuel shut off solenoid can corrode, causing the connector to overheat, increasing the risk of a fire. Both dealers and fleet operators will be performing the necessary updates to correct this concern. The corrections include: replacing the fuel shut off solenoid, fuel pump fuse, and adjusting the wiring routing.

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