heater core?
Mountain Pass
Joined: Jan 2002
Posts: 213
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From: Aston Pa USA
It's nice and easy to get to the resistor while you have the whole dash out of the way to change the heater core....
Senior User
Joined: Jan 2010
Posts: 210
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It's pretty easy even with the dash in place.
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New User
Joined: Nov 2008
Posts: 20
Likes: 0
From: Ontario, Canada
HEATER CORE?
There is a short cut video on u=tube for replacing the heater core. There is an installation bracket used by the assembly workers at FORD to lift the dash in with an arm. Supposedly this bracket is useless after the dash is in. The guy in the video cuts through it giving you enough room ro wiggle the core out. It's been a while since i've seen the video, Ithink he stills loosens the dash but he doesn't have to remove it. He says it saves a lot of time.
Good Luck and Happy Wrenchin'
99 F-150 4x4, 4.6, std cab, long box LT 245/75/16
Good Luck and Happy Wrenchin'
99 F-150 4x4, 4.6, std cab, long box LT 245/75/16
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Senior User
Joined: Jan 2010
Posts: 210
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Sounds like a blend door issue. When you change it to 'hot', the blend door isn't moving...Could be that you didn't install it correctly after replacing the heater core or the actuator could be bad. Were all the electrical connections plugged back in at the acuator?
I do know with these Fords that when the coolant is drained and then re-filled, sometimes it takes a bit for the air to escape and coolant pass through the core. That's what the dealership told me when I had to drain the coolant to replace my engine oil cooler. When I put it back together, the heater didn't work. After running the engine for a while (upwards of 15-20 minutes), it started working fine and has done so ever since. How long did you run it after the core was replaced? (with heater on high)
I do know with these Fords that when the coolant is drained and then re-filled, sometimes it takes a bit for the air to escape and coolant pass through the core. That's what the dealership told me when I had to drain the coolant to replace my engine oil cooler. When I put it back together, the heater didn't work. After running the engine for a while (upwards of 15-20 minutes), it started working fine and has done so ever since. How long did you run it after the core was replaced? (with heater on high)
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