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1978 Heater core problems

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Old Sep 19, 2002 | 01:05 PM
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Blue78witha300's Avatar
Blue78witha300
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1978 Heater core problems

Im having a problem with my heater core. Some antifreeze is starting to trickle into the passangers floorboard. So I just bought a new one at advance auto for 26 dollars. How do I go about changing it. If I remember correctly, I was reading around and came across a post a few months ago pertaining to some tips on the removal/installation. Any replies would be appreciated. Thanks.
 
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Old Sep 19, 2002 | 01:57 PM
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1978 Heater core problems

If you don't have air conditioning the
Haynes 73-79 manual covers it. I've done
it on a non-air 79 F150. It wasn't bad.
 
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Old Sep 19, 2002 | 02:09 PM
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From: texarkana, tx
1978 Heater core problems

Blue78witha300 -

It helps to stand on your head when doing it, I've found. Harrison had to have the brace on the passenger side of the dash undone to allow the dash to move out far enough to drop the heater box assembly to drop down after that, it was about 6 screws and it was out. Harrison doesn't have A/C --- if your ride does, you're in for quite a ride...

Cheerz...
 
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Old Sep 19, 2002 | 02:30 PM
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From: SD
1978 Heater core problems

There is a tech article about this very thing, toward the bottom of the tech artcle page. It has step by step instructions. Lots of other good articles there too.

Marty
 
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Old Sep 19, 2002 | 03:09 PM
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1978 Heater core problems

My truck doesnt have a/c. It has a 300-6. It's the same for all engines, right? also thanks for the responses

 
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Old Sep 19, 2002 | 03:26 PM
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From: texarkana, tx
1978 Heater core problems

Blue78witha300 -
That's exactly what Harrison had in him. You're looking at a 60 minute job....30 minutes if you've done it before. Don't forget the 3-4 nuts in the engine compartment...

Good luck...
 
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Old Sep 19, 2002 | 03:37 PM
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From: in the double wide
1978 Heater core problems

 
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