| Coolant fan inoperative |
Refer to Cooling Fan Inoperative (Except LAT) or Cooling Fan Inoperative (LAT) . |
| Thermostat stuck closed |
Replace the thermostat. |
| Radiator fins obstructed |
- Remove or relocate add-on parts that block air to the radiator
- Clean away bugs, leaves, etc.
- In cold climates, clear away snow, etc. from the radiator core
|
| Surge tank outlet hose pinched or kinked (at radiator) |
- Relieve kinks by re-routing
- Replace the hose if necessary
|
| Incorrect radiator |
Refer to the radiator usage chart in a parts catalog. If needed, replace with the correct radiator. |
| Loss of system pressure |
- Pressure check the system and the surge tank cap
- Ensure that the correct cap is being used
|
| Damaged or missing air seals or deflector |
Repair or replace as required. |
| Malfunctioning coolant pump |
Replace the coolant pump. Refer to Water Pump Removal
. |
| Air trapped in cooling system |
Refill the cooling system. |