Coolant Temperature Above Normal - Gradual Overheat (Continued)
Cause Corrections
----------
Radiator Cap Incorrect or Malfunction-
ing. Cap Rated Pressure Too Low
OK
f
Check the radiator pressure cap. Refer
to Procedure 1-15.
----------
Overconcentration of Antifreeze and/or
Supplemental coolant Additives
OK
f
Use correct concentration. Refer to
Procedures 1-02 and 1-05.
----------
Vent Line or Fill Line Plugged or
Incorrectly Routed From Engine and/or
Radiator
OK
f
Check routing and operation of the vent
line. Refer to Procedure 1-14. Refer to the
OEM installation specifications.
----------
Intake Air Temperature Too High (30°F
Above Ambient)
OK
f
Disconnect underhood air. Check for air
recirculation from radiator entering air
cleaner.
----------
Install CompuchekT if Available
OK
f
Perform the Cooling System test. Refer to
CompuchekT Installation Manual, Bulletin
No. 3810352.
----------
* Temperature Gauge or Alarm
Malfunctioning
OK
f
Test the gauge. Repair or replace if
necessary. Refer to Procedure 1-13.
(Continued)
If CompuchekT was used, this cause has already been tested.
SectionT-Troubleshooting Troubleshooting Symptoms Charts
N14 Page T-15
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