Symptom Chart
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART
| Condition |
Possible Sources |
Action |
|
|
- Coolant hoses or tubes
- Hose clamps
- Coolant pump O-ring seal or gasket
- Thermostat O-ring seal or gasket
- 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
- Coolant crossover manifold assembly - 6.8L engines
- Engine gaskets (may leak internally or externally)
- Oil cooler (if equipped) (may leak internally or externally)
- Cylinder block core plugs
- Cylinder head core plugs
- Block heater (if equipped)
|
|
|
|
- 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 indicator system (gauge)
- Cylinder Head Temperature (CHT) sensor
- Heater core
- Coolant pump
- Coolant flow restriction
- Engine oil in engine coolant
- Transmission fluid in coolant
|
|
- The engine does not reach normal operating temperature
|
- Low coolant level
- Thermostat
- Mechanical fan clutch always engaged
- Electronically actuated fan clutch
- Engine coolant temperature indicator system (gauge)
- CHT sensor
|
|
- The block heater does not operate correctly
|
|
- CHECK continuity in all 3 power cable circuits. If any circuit measures greater than 5 ohms, INSTALL a new power cable.
|
|
|
- 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.
|
- The electronically controlled fan clutch is inoperative in one or more speeds or does not operate correctly (if equipped)
|
- Wiring
- Relays
- Fuses
- Electronic fan clutch
|
|
- Noisy mechanical fan operation (if equipped)
|
|
|