Mechanics

F150 HEATER PROBLEM

1998 Ford F-150

Heater problem
1998 Ford F150 6 cyl Two Wheel Drive Manual 160000 miles

I am having a problem with my 1998 Ford F150. The heater will heat up and then get cool, then heat up again and cool again. It tends to heat better at a higher speed. Thermostat? If that is it, where is it located on the engine?
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David82262
February 28, 2008.



Sounds to me like you are low on coolant. With engine cool, open radiator cap and check level, if ok then replace thermostat. Follow the upper radiator hose to the engine and that is where your thermostat is located. Hope this helps

Tiny
Mastertechtim
Feb 28, 2008.