How to Diagnose Ford Engine Overheat Problems

Open the hood and check the coolant in the reservoir tank. Unscrew the cap on the coolant reservoir and look inside the tank. The coolant should be a dark green color. If it is brown or looks like peanut butter, then there is significant rust in the system and you will need to overhaul your radiator and flush the cooling system. There may also be damage to the engine block.

Remove the radiator cap by pushing down on the cap and twisting it counterclockwise.

Start the engine and periodically check the engine coolant temperature. With the cap off, you can stick your fingers into the coolant as it is warming up. If the coolant isn't warming up, then the problem may be with your thermostat, which will need to be checked and potentially replaced.

Check to make sure that the coolant is flowing properly. Stick your fingers into the coolant through the open radiator cap before it warms up fully to see if it's moving through the system. You will be able to feel it moving through the system if your fingers are in the coolant. If the coolant isn't moving, there is likely a problem with the water pump and it will need to be replaced.

TIPS: For specific information about your Ford engine and cooling system, consult the particular vehicle's manual

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