Symptom Chart
WARNING: This page is about a different variant/trim than selected.
SYMPTOM CHART
| Condition |
Possible Sources |
Action |
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- Coolant hoses or tubes
- Hose clamps
- Coolant pump O-ring seal
- Thermostat O-ring seal
- Thermostat housing
- Radiator
- Transmission fluid cooler (in radiator) (may leak internally or externally)
- Degas bottle
- Pressure relief cap
- Coolant pump leaking from weep hole
- Heater core
- Engine gaskets (may leak internally or externally)
- Oil cooler (if equipped) (may leak internally or externally)
- Heated PCV (if equipped)
- Cylinder block core plugs (if equipped)
- Cylinder head core plugs (if equipped)
- Block heater (if equipped)
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- Low coolant level
- External engine coolant leak
- Airlock in system
- Pressure relief cap installation
- Restricted airflow through the A/C condenser or radiator
- Internal engine coolant leak
- Coolant condition/concentration
- Accessory drive components
- Non-OEM engine enhancement components
- Cooling fan
- Cooling fan clutch
- Radiator
- Thermostat
- Engine Coolant Temperature (ECT) gauge
- Cylinder Head Temperature (CHT) sensor
- Heater core
- Coolant pump
- Coolant flow restriction
- Engine oil in engine coolant
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- The engine does not reach normal operating temperature
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- Low coolant level
- Thermostat
- Mechanical fan clutch always engaged
- ECT gauge
- CHT sensor
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- The block heater does not operate correctly
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- CHECK continuity in all 3 power cable circuits. If any circuit measures more than 5 ohms, INSTALL a new power cable.
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- CHECK the resistance of the block heater. If the resistance does not measure between 12.5 and 17.0 ohms, INSTALL a new block heater.
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- Noisy mechanical fan operation
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