1989 Ford F-150 heater core hoses

Tiny
MIKE1MONT
  • 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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Sunday, December 9th, 2007 AT 5:45 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER

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

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Sunday, December 9th, 2007 AT 5:50 AM

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