LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2005 >> DeVille Protection Series >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Diagnostic Information and Procedures >> Engine Fails To Reach Normal Operating Temperature

Engine Fails To Reach Normal Operating Temperature

Engine Fails To Reach Normal Operating Temperature

Step Action Yes No
1 Check the level of the coolant in the coolant surge tank.
Is the coolant in the surge tank at the proper level?
Go to Step 3  Go to Step 2 
2 Add engine coolant as necessary. Refer to Draining and Filling Cooling System .
Does the engine still fail to reach normal operating temperature?
Go to Step 3  System OK
3 Check if the thermostat is stuck open.
Is the thermostat stuck in the open position?
Go to Step 5  Go to Step 4 
4 Check to see if the correct type of thermostat was installed.
Was the incorrect thermostat installed?
Go to Step 5  System OK
5 Replace the thermostat. Refer to Thermostat Replacement .
Does the engine still fail to reach normal operating temperature?
- System OK