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F-150 Heater Repair

Tiny
LAPSEAL
  • MEMBER
  • 1915 FORD F-150
1994 F-150 4x4 short bed automatic. Replaced radiator, thermostat, when heater is turned on and temperture knob is turned up, the air is warm but not hot. 1 line going to core is hot the other is warm, how does the heater work? And what can I check out. The truck has 130k miles on it.
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Saturday, November 24th, 2007 AT 12:08 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
If the hoses are not both hot, try flushing the core, you can do it or go to a radiator shop, they can blast it out with air and water. May ultimatly need to replace the core.
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Saturday, November 24th, 2007 AT 12:19 PM

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