Thermostats
Ford E-150 Van
Ford F-150

How do you replace the thermostat located on a 1986 Ford F-150?

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2006-05-29 12:31:16
2006-05-29 12:31:16

Follow the top radiator hose back to the engine. There is where the t-stat housing is. Remove the hose, remove the housing, remove the old t-stat, clean gasket surfaces install the t-stat into the housing with the spring side sticking out toward the engine, use spray adhesive to attach the gasket(DO NOT USE RTV), reinstall everything and be careful to evenly tighten the housing bolts until they are snug(DO NOT RAUNCH HARD ON THE BOLTS). Fill the cooling system with a 50/50 mix of coolant and water, and burp the system.

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