Three problems related to gas recirculation valve (egr valve) have been reported for the 2012 Chevrolet Silverado 2500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Chevrolet Silverado 2500 based on all problems reported for the 2012 Silverado 2500.
Exhaust gas recirculation (egr) cooler bypass valve had to be replaced 60,000 miles. The check engine light came on while the car was in motion.
When temperatures drop below 30 degrees the tire pressure warning light and the low coolant light comes on. Took to dealership and they advised that both warning lights do that below 28 degrees. This has occurred since 2013 winter. Glow plugs going out one at time gm will only replace as they go out up to 120000 not enough being done with this.
Several problems. . Multiple failures of "glow plugs" (known gm problem) and nox exhaust sensors, high def use, unusual "buildup" in the exhaust filter requiring many dealer visits, downtime, repair costs and extremely poor fuel mileage. Glow plugs often fail at initial start when system is "cold". . Oat has been from about 45 to about 90 degrees fahrenheit. Altitude, about 20 to 1200 ft asl. Dealer serviced only. Vehicle has no mods!!!!.
| Gas Recirculation Valve (egr Valve) problems | |
| Engine And Engine Cooling problems | |
| Cooling Fan problems | |
| Check Engine Light On problems |