How do I replace the block heater in my 1998 F150 4.6L?
send it to a garage???????
on bottom side of engine
how do I disable computer on Ford 150 1998
at the top of water pump in separate housing
Find the thermostat at the engine end of the upper rad hose. When you replace it , make sure the spring goes toward the engine.
watch video on youtube.
This is a 15 year old vehicle. The thermostat is very cheap insurance. Just replace it when performing a cooling system service. Replace it by removing the old thermostat, carefully cleaning off the old gasket. Install the new gasket & thermostat, spring toward engine block, and tighten to factory specs, and no more.
The vacuum diagram for a 1998 Ford F150 is located in the service manual. It details how each vacuum line is routed, where the line is attached, and its function.
should be located by the thermostat housing on front of engine block
on a 1993 4.9 it is just to the left of the thermostat where the radiator hose and heater core hoses go into the thermostat it has a couple of wires running into it.
Follow the top radiator hose to the thermostat.