Diagnostic Aids

Overheating can be caused by overload due to trailer towing, restricted air flow to radiator or condenser, missing or damaged front air dam, inoperative cooling fans, corroded ECT sensor connectors or faulty water pump or thermostat.

An intermittent malfunction may be caused by a poor connection, rubbed-through wire insulation, or a wire broken inside insulation. Inspect harness connectors for backed-out terminals, improper mating, broken locks, improperly formed or damaged terminals, or poor terminal-to-wire connections before component replacement.