Initial Inspection and Diagnostic Overview
Overheating and Cooling system related problems can be the result either mechanical, electrical, or computer related failures. In order to properly diagnose the problem all related systems should be checked prior to reaching a conclusion.1. Perform a visual inspection.
2. Check the computer system for related trouble codes. If codes exist, service these first before proceeding.
3. Perform a system check. Cooling Fan Inoperative