Colony Park V8-302 5.0L VIN F FI (1985)
Coolant Temperature Sensor / Switch HVAC: Testing and Inspection
THERMAL BLOWER LOCKOUT SWITCH
The three failures associated with the thermal blower lockout switch are:
1. A short across the two terminals of the harness connector.
2. A vacuum leak.
3. Coolant leaks.
Refer to All Functions Selector Valve Positions Leak diagnosis for vacuum leaks. See: Testing and Inspection/Symptom Related Diagnostic
Procedures/Electronic Climate Control/All Function Selector Valve Positions Leak
