Possible Causes
| POSSIBLE CAUSES |
|---|
| ENGINE OIL LEVEL LOW |
| INCORRECT OR CONTAMINATED ENGINE OIL |
| INCORRECT ENGINE OIL FILTER |
| INSUFFICIENT OIL PRESSURE TO THE INTAKE CAM PHASER DURING COLD START CONDITION |
| CAMSHAFT 1/1 OIL CONTROL VALVE STICKING |
| CAMSHAFT 1/1 PHASER |
| ENGINE MECHANICAL PROBLEM |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .