Mechanics

F150 HEATER CORE HOSES

1989 Ford F-150

Heater problem
1989 Ford F150 Four Wheel Drive Manual 185000 miles

Hi
I want to install a tank heater on my f150, it has a 300 straight six cylindar for a engine. I need to know which heater hose is the return hose in it.
Thank You
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Mike1mont
December 9, 2007.



Disconnect both heater hoses from the heater core start it up and observe the hose that has pressure on it.

Rasmataz
Dec 9, 2007.