Tag Archives: Express

If your Chevy Express has a humming noise at high speed, it can be distracting and, depending on the cause, dangerous. We’ve outlined the most common reasons why a humming noise in your van gets louder with speed. We’ve also provided an audio sample of each issue to help determine …

P0501 is an OBD2 trouble code that indicates there is an issue with your Chevy Express’s Vehicle Speed Sensor (VSS). It occurs when the Powertrain Control Module (PCM) gets a signal from the VSS outside its normal operating range (in terms of voltage). P0501 is a generic powertrain code, which …

P0725 is a common OBD2 code that can occur in the Chevy Express. It indicates an issue with the engine speed sensor input circuit (which measures the engine speed at the input shaft and helps the PCM determine when and how hard to shift the transmission). It’s a generic code, …

P0523 is a standard OBD2 trouble code that can occur in the Chevy Express. In layman’s terms, it indicates the signal from the oil pressure sensor is higher than its normal operating range (in terms of voltage). P0523 is generic (it has the same definition for all vehicles), repair steps …

P0705 is a very common transmission-related trouble code that can occur in the Chevy Express. In layman’s terms, it means that your Express can’t tell what gear you’ve selected, which can have some real consequences on how it drives. It’s most likely caused by a bad Transmission Range Sensor (TRS), …

P015B is a generic trouble code, which means It indicates that the Oxygen (O2) sensor on bank 1 is not cycling from lean to rich as fast as it should be. P015B is usually caused by a bad oxygen sensor, but there can also be other causes. P015B Definition: O2 …

P2279 is a generic OBD-II code. It indicates there is a vacuum leak coming from your Chevy Express’s air intake system. While P2279 is a generic code (it has the same definition for the Express as it would any other vehicle made after 1996), repair steps will vary based on …

P0605 is a relatively rare OBD-II trouble code that can occur in the Chevy Express. It indicates that PCM (powertrain control module) is not passing its ROM (read-only memory) self-test when you turn the ignition on. While P0605 is a generic code (it has the same meaning for any car …

P0116 indicates that your Chevy Express’s engine coolant temperature sensor is sending a signal to the PCM (powertrain control module) that is outside of its normal operating range (in terms of voltage). While P0116 is a generic OBD2 code (it has the same definition for any car or truck), it …

P0036 is a very common O2 sensor-related trouble code. It’s generic, which means it has the same definition for the Chevy Express as any other vehicle. This code is almost always caused by a bad heated oxygen sensor or wiring issue and is almost always symptom-free. P0036 should NOT be …