Step | Action | Value(s) | Yes | No | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | Inspect the coolant level. Is the coolant level low? | -- | ||||||||||||
2 |
Are there leaks in the system? | -- | Go to Loss of Coolant | |||||||||||
3 | Pressure test the system. Are there leaks in the system? | -- | Go to Loss of Coolant | |||||||||||
4 | Inspect the condition of the drive belt. Is the drive belt loose? | -- | Go to Drive Belt Diagnosis in Engine Mechanical. | |||||||||||
5 | Inspect the hoses. Have the hoses collapsed? | -- | ||||||||||||
6 | Replace the hoses. Refer to Radiator Hose Replacement . Does the engine still overheat? | -- | System OK | |||||||||||
7 | Inspect the temperature level of the thermostat. Is the temperature level high? | -- | ||||||||||||
8 | Replace the thermostat. Refer to the following procedures: Does the engine still overheat? | -- | System OK | |||||||||||
9 | Inspect the radiator. Is the radiator clogged? | -- | Go to Inspection Maintenance Recommendations. | |||||||||||
10 | Inspect the engine block. Is the engine block clogged? | -- | Go to Inspection Maintenance Recommendations. | |||||||||||
11 | Inspect for gas leaks into the system. Is there a gas leak into the engine block? | -- | ||||||||||||
12 | Inspect for bubbles in the coolant. Are there bubbles in the coolant? | -- | Go to System Checks. | -- | ||||||||||
13 | Inspect the water pump. Are there bubbles in the coolant? | -- | System OK | |||||||||||
14 | Replace the water pump. Refer to the following procedures: Does the engine still overheat? | -- | System OK | |||||||||||
15 | Inspect the radiator fan clutch. Is the radiator fan clutch operating normally? | -- | Go to Step 17 | |||||||||||
16 | Inspect for any of the following conditions that may contribute to the engine overheating:
Does the engine still overheat? | -- | -- | System OK | ||||||||||
17 | Replace the radiator fan clutch. Refer to the following procedures: Does the engine still overheat? | -- | -- | System OK |
