Possible Causes
| Possible Causes |
|---|
| LOW COOLANT LEVEL OR AIR IN COOLING SYSTEM |
| RESTRICTION IN COOLING SYSTEM PLUMBING |
| COOLANT BYPASS VALVE MECHANICALLY STUCK OPEN |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .