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Pinpoint Test 3: The Engine Does Not Reach Normal Operating Temperature

PINPOINT TEST 3 - ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE

PINPOINT TEST 3 THE ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE
STEP INSPECTION ACTION
1 CHECK THE ENGINE TEMPERATURE
  • Start the engine and allow the engine to idle for ten minutes.
  • Key OFF.
  • Feel the inlet and heater hoses and the underside of the upper radiator hose.
  • Are the upper radiator hose and the heater hoses cold? 
 Yes Replace the thermostat.
Test the system for normal operation.
No See INSTRUMENT PANELS article in Accessories & Equipment for diagnosis and testing of the engine coolant temperature gauge
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