Troubleshooting Hints

Cooling System Troubleshooting:

A. Problems not requiring disassembly of cooling system:
1. Large obstructions blocking radiator or condenser
a. Auxiliary oil coolers,relocate
b. Ice, mud or snow,remove
2. Engine oil overfill,check engine oil dipstick
3. Incorrect radiator for application,install correct radiator
4. Missing or damaged lower air baffle,repair or replace as necessary

B. Problems requiring disassembly of cooling system:
1. Incorrect or damaged fan,repair or replace as necessary
2. Faulty emission system components (could cause overheating at idle),replace faulty component
a. PCV valve
b. TVS or TCS
3. Pressure check cooling system with pressure cap installed
4. Faulty coolant pump,replace coolant pump
5. Plugged radiator tubes
6. Internal system leaks
a. Head gasket
b. Cracked block
c. Timing chain/belt cover
d. Intake manifold gasket
7. Plugged coolant passages in cylinder head(s),remove head(s) and check visually