heater swap...winter's comin'!

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Sep 30, 2002 | 11:16 PM

77fromheaven

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From: Denver

heater swap...winter's comin'!

does anyone know of any reason i can't put the heater i already pulled out of my '77 f100 into my 77 f250 who's heater doesn't work? would i be better off to just replace whatever it is that's broken? when i turn the heater on, nothing happens. any suggestions? thanks for any hints tips or tricks!

luke

Sep 30, 2002 | 11:18 PM

Mil1ion

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heater swap...winter's comin'!

Go Ahead.... Swap away !

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Sep 30, 2002 | 11:26 PM

liljpy

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From: midwest

heater swap...winter's comin'!

When you say nothing happens, what does happen?? Does the heater fan turn on but you get cold air?? Or, does the heater fan just not turn on?? Heater cores are a bitch to take out, some are bolted through the firewall, exposing the bolt to the elements...ie, 20 years of salt makes rusted bolts. Swapping will work but i would use it as a last resort, because you are not solving anything, you still have one truck with a bad heater. Look into it before you go to the trouble of taking out 2 heater cores and swapping. Could be as simple as a stick jamming the fan.

Oct 1, 2002 | 03:27 AM

DailyDriver

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From: Bakersfield Ca.

heater swap...winter's comin'!

Also check your vacuum switch under the hood. When activated it opens up the water valve to let hot water into the heater core. If its bad, foze up, disconnected, or has rotting vacuum lines to it, it could be part of your problem. As stated above, check everything else first before going after the heater core. It's real pain in the rear. I have one to replace myself as my heater core leaks. Good luck.

Oct 2, 2002 | 05:18 AM

tellico racing

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Joined: May 2002

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From: Southwestern Michigan

heater swap...winter's comin'!

You guys ever do a heater core in the 73-79 trucks?? Sure seemed easy when I did it,easiest one I have ever done.

78 F150 4x4
429 CID
Dana 44 spooled Front,
9"Locked rear,
5:13 Gears
17/40/15 Gumbo monster mudders
18/39.5/15 Swamper Boggers
BIG,BAD,and UGLY.

Oct 3, 2002 | 09:51 AM

martinb

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heater swap...winter's comin'!

Its easy if you don't have ac. The manual I have recommends you not even try if you do.

Oct 4, 2002 | 03:32 AM

DailyDriver

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From: Bakersfield Ca.

heater swap...winter's comin'!

Yes, my manual says to not mess with the heater core if it is equiped with AC. Hey, I'm not that stupid. I can figure this out. With an AC unit you have to remove the duct work in front of the evaporator. Disconnect and remove the evaporator, loosing all your refrigerant. After thats removed you can get to the heater core. It's kind of a pain to get to from under the dash but not beyond the scope of the home machanic as the manual suggest. I went to the junk yard and practiced on an old Ford first and found a good used heater core to boot.