Possible Causes
WARNING: This page is about a different variant/trim than selected.
| Possible Causes |
|---|
| ENGINE OIL DIRTY OR CONTAMINATED |
| INCORRECT ENGINE OIL VISCOSITY |
| INSUFFICIENT ENGINE OIL PRESSURE/OIL PUMP |
| VCT CONTROL CIRCUIT OPEN/HIGH RESISTANCE |
| VCT CONTROL CIRCUIT SHORTED TO GROUND |
| GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| VARIABLE CAM TIMING (VCT) SOLENOID |
| HIGH FRICTION IN CAMSHAFT OR OTHER VALVETRAIN COMPONENTS |
| CAMSHAFT PHASER |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .