U20E5 Chevrolet Bel Air OBD Code

OBD/2 U20E5 error code description and symptoms.

Variable Cam Timing Over-advanced (Bank 1) The comprehensive component monitor (CCM) monitors the VCT position for an over-advanced camshaft timing.
The test fails when the camshaft timing exceeds a maximum calibrated value or remains in an advanced position. Cam timing improperly set No oil flow to the VCT piston chamber Low oil pressure VCT solenoid valve stuck closed Camshaft advance mechanism binding (VCT unit) U20E5 DTC is a check of the VCT unit.

Gear changes are accomplished by a command from the TCM to energize the clutch actuator to release the clutch; after which various actuators inside the transmission disengage the current gear, and depending on current operating conditions, engage the next higher or lower gear ratio. All of this happens much faster than a human driver could change gears, and in most applications, gear changes are as smooth and seamless as on any fully automatic transmission.

U20E5 Chevrolet Bel Air Error Code Repair Process :

For column reach feedback potentiometer circuit short to ground check engine light is perhaps the most troubling of lights because it could mean so many different things, from you didn't screw the gas cap on tightly enough to look out for pistons flying through the hood and into the stratosphere. The easiest way to find out what this light is telling you is to hook your vehicle up to a scan tool. U20E5 error code diagnostic tool looks a little like an oversized calculator and plugs into a communication port inside the car. After you instruct it to perform the scan, it speaks column reach feedback potentiometer circuit short to ground with your car's computers to find out exactly what's prompting the light to turn on.

Common Causes of Chevrolet Bel Air U20E5 OBD2 Code

A common cause of code U20E5 is the failure of Column Reach Feedback Potentiometer Circuit Short to Ground, but there are several other possible causes as well, such as ;

Camshaft advance mechanism binding (VCT unit)
EVAP system hose leaking
Faulty TCM or TCM programming
Erratic camshaft position due to low oil pressure

U20E5 is a kind of Network Trouble Code

U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

About Us | Contact | Privacy

U20E5 Chevrolet Bel Air OBD Code

U20E5 Chevrolet Bel Air Error Code Repair Process :

Common Causes of Chevrolet Bel Air U20E5 OBD2 Code

U20E5 code for other Chevrolet cars