Asked in Antifreeze and Engine CoolantHow To
How to replace the engine coolant temperature - ECT - sensor on a Windstar?
January 07, 2010 7:07PM
Engine Cooling Fan Fuses/Relays
1995-1998 Engine compartment fusebox # B & H
1999-2003 Engine compartment fusebox - Fuse #107 and
relays #301 & 303
The engine coolant temperature (ECT) sensor is threaded
into the top left-side of the engine, in the intake manifold (right
behind the oil filler cap.)
The steps to replacing are:
- Partially drain the engine cooling system until the coolant level is below the ECT sensor mounting hole.
- Disconnect the negative battery cable.
- Disconnect the wiring harness from the ECT sensor.
- Remove the coolant temperature sensor from the intake manifold.
- Coat the sensor threads with Teflon® sealant.
- Install the sensor into the intake manifold and torque to 71-115 inch lbs
- Connect the negative battery cable.
- Refill the engine cooling system.
- Start the engine and check for coolant leaks. Top off the cooling system
It should be located on or near the waterneck. The waterneck is
where your thermostat is contained. It could also be tapped into
your head (likely Bank 1, which is the side next to the firewall).
If it is in the head you will likely find it on the end of the
head. Remember to use a small amount of teflon tape on the threads
of the new switch.
it is under the intake manifold hose where it attaches to the throttle body
The engine fans are protected by relays in the engine compartment power / fusebox.
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