P0675 is a common diagnostic trouble code found in diesel engines. It’s a generic code, which means it has the same definition for the GMC Sierra as it would any other vehicle. P0675 indicates that the fifth cylinder glow plug is not heating it’s assigned combustion chamber. Your Sierra likely has a bad glow plug … Read more
P0894 is a somewhat common DTC trouble code. It indicates that your GMC Sierra’s transmission may be slipping. It does not specify what part of the transmission is the problem. While P0894 is a general diagnostic trouble code (same definition for the Sierra as any other vehicle), it is far and away most common on … Read more
P0882 is a generic DTC trouble code, which means it has the same meaning for the GMC Sierra as it would any other vehicle. While this code sets the check engine light, it is actually warning you of an issue with the TCM transmission control module, specifically that the power input signal is too low. … Read more
P0674 is a fairly common DTC code found in diesel engines. It’s generic, which means it has the same definition for the GMC Sierra as it would any other vehicle. The good news is, it’s a pretty straightforward diagnosis. P0674 indicates that your Sierra’s fourth cylinder glow plug is not working. This code is typically … Read more
P0868 is a generic DTC code, which means it has the same definition for the GMC Sierra as it would any other vehicle. This particular code indicates that the transmission fluid pressure is below the minimum operating specs. If your Sierra has P0868 the first thing you should do is check the transmission fluid. If … Read more
P0673 is a common diagnostic trouble code found in diesel engines. It’s generic, which means it has the same definition for the GMC Sierra as it would any other vehicle. This particular code indicates that your Sierra’s third cylinder glow plug is not working. This code is typically caused by a bad glow plug or … Read more
P0358 is a generic OBD II diagnostic code that indicates an issue with the ignition coil “H” (it’s the eighth cylinder). Specifically with the primary or secondary wiring circuits. If your GMC Sierra has thrown P0358, it may be accompanied by P0308 (this code indicates that the eighth cylinder is misfiring). Addressing P0358 should take … Read more
P0672 is a common diagnostic trouble code found in diesel engines. It’s generic, which means it has the same definition for the GMC Sierra as it would any other vehicle. P0672 indicates that your Sierra’s second cylinder glow plug is not working. This code is typically caused by a bad glow plug or wiring issue. … Read more
P0357 is a generic OBD II diagnostic code that indicates an issue with the ignition coil “G” (it’s the seventh cylinder). Specifically with the primary or secondary wiring circuits. If your GMC Sierra has thrown P0357, it may be accompanied by P0307 (this code indicates a misfire in cylinder seven). Addressing P0357 should take care … Read more
P0715 is a generic, and somewhat rare OBDII trouble code. If your GMC Sierra has P0715, it indicates there is a communication error with the sensor that measures transmission input speed. Common Causes: A bad transmission speed sensor, shift solenoid, wiring issues, and even low/no transmission fluid can all cause P0715. P0715 Definition: Input/Turbine Speed … Read more