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STATES |
DETAILS/RESULTS/ACTIONS |
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A1: CHECK FOR COOLANT LEAKS |
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1Visually check for coolant loss. |
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• Is the engine cooling system leaking? |
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→ Yes |
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Repair the faulty components. Refer to the relevant section. |
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→ No |
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PERFORM a Pressure Test. For more information, refer to Component Tests in this section. |
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PINPOINT TEST B: ENGINE OVERHEATING
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STATES |
DETAILS/RESULTS/ACTIONS |
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B1: CHECKING THE COOLANT. |
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WARNING: Never remove the coolant expansion tank while the engine is running. Failure to follow these instructions may result in damage to the engine cooling system and personal injury. To avoid being scalded by hot water or steam from the cooling system, use extreme caution when removing the expansion tank from a hot cooling system. Wait until the engine has cooled, then place a thick cloth over the expansion tank cap and slowly turn it until the pressure begins to release. While releasing the pressure in the cooling system, move away from the expansion tank. After ensuring that all pressure has been released, twist and remove the expansion tank cap without removing the thick cloth. Failure to follow these instructions may result in personal injury. |
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1Check the coolant level and condition. |
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• Is the coolant normal? |
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→ Yes |
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Go to B2. |
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→ No |
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If the coolant concentration is low or contaminated, flush the cooling system and refill with new coolant if necessary. If the coolant level is low, REFILL the system and PERFORM the Element Test. For more information, refer to the Element Tests section in this section. |
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B2: CHECKING THE THERMOSTAT |
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1Perform the check of the elements according to this section. |
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• Is the thermostat OK? |
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→ Yes |
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CONTACT WDS. |
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→ No |
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INSTALL a new thermostat. Vehicles with 1.6L Zetec-SE/1.4L engine. Vehicles with 1.6L Duratec engine. For more information, refer to Thermostat available in this section. Vehicles with 1.8L/2.0L/1.6L Zetec-E engine. For more information, refer to Thermostat available in this section. Vehicles with 1.8L Diesel engine. For more information, refer to Thermostat available in this section. Vehicles with 2.0L Duratec ST engine. For more information, refer to Thermostat available in this section. Check that the system is operating correctly. |
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PINPOINT TEST C: ENGINE DOES NOT REACH NORMAL OPERATING TEMPERATURE
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STATES |
DETAILS/RESULTS/ACTIONS |
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C1: THERMOSTAT CHECK |
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1Perform the check of the elements according to this section. |
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• Is the thermostat working? |
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→ Yes |
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For more information, please contact WDS. |
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→ No |
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INSTALL a new thermostat. Vehicles with 1.6L Zetec-SE/1.4L engine. For more information, refer to Thermostat - 1.6L Zetec-SE/1.4L available in this section. Vehicles with 1.6L Duratec engine. For more information, refer to Thermostat - 1.6L Duratec available in this section. Vehicles with 1.8L/2.0L/1.6L Zetec-E engine. For more information, refer to Thermostat - 1.8L/2.0L/1.6L Zetec-E available in this section. Vehicles with 1.8L Diesel engine. For more information, refer to Thermostat - 1.8L Diesel available in this section. Vehicles with 2.0L Duratec ST engine. For more information, refer to Thermostat - 2.0L Duratec ST available in this section. Check that the system is operating correctly. |
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