Coolant Temperature Above Normal - Dodge D250 1990 Service Manual

Troubleshooting Logic
Page9A-20
Base Engine Components
DODGE Turbo Diesei
Coolant Temperature Above Normal
Cause
Correction
Low Coolant Level Check/Replenish Coolant.
G K G
Locate and Correct the Source of the
Coolant Leak. Refer to
Troubleshooting Logic for Coolant
Loss.
G
Incorrect/Malfunctioning Pressure Cap Replace Cap with the Correct Rating
for the System.
OK
*
High Lube Oil Level Check/Drain Oil to Correct Level.
OK
t
Loose Drive Belt on Water Pump/Fan Check/Replace Belt or Belt Tensioner.
OK
*
Inadequate Air Row to the Radiator Check/Repair Radiator Core, Fan
Shroud and Fan Clutch as Required.
OK
•
Radiator Fins Plugged Blow Debris from Fins
OK
Collapsed Radiator Hose Check/Replace Hose.
OK
^ (Continued)