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Oct 18, 2014 | 12:55 AM

#16

Josher57

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Quote:

Originally Posted by HIO Silver

Hey OP.

Check your heater valve if your truck has one. Don't check it if it doesn't.

Just wanted to make that perfectly clear.

Haha Sorry about the delay. I posted and them got tied up with some other things. I've got a 351 in it. The only air vents are on the floor. I checked those hoses running thru the firewall. There are 2 and they were both hot. I'll look at doing the water and air flush on the heater core to see if that helps...before getting too far over my head.

I can only work on it a little here and there as my wife is getting close to delivering our second. So most of my "off" time is spent getting things ready.

Oct 18, 2014 | 09:11 AM

#17

77&79F250

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Joined: Feb 2007

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From: S/W Missouri, Polk county

I would try to stop by any local parts chain story and pick up a $12.00 ish? Chilton or Haynes basic auto repair manual for your truck. That will help with part ID, location and get the ball rolling on learning where things are located and how they work together.

Each section covers the basic's from brakes to steering and heater cores. Just doing a heater core/radiator system flush can help and that even might be covered in the book?

At least you have one of the easiest heater cores to access and replace. Versus the one in an a/c truck. PITA.

Do It Yourself and DIY Auto Repair by ChiltonDIY

Automotive Repair Manual from Haynes

Oct 18, 2014 | 09:46 AM

#18

Josher57

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Much appreciated 77/79. I've been saving a bunch of pictures and stock diagrams that guys have posted. I'll definitely pick up one of those books.

Oct 18, 2014 | 09:55 AM

#19

77&79F250

Moderator & parts slinger

Joined: Feb 2007

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From: S/W Missouri, Polk county

I believe you can go to the library and look thru them for free....Have you been here yet?

https://www.ford-trucks.com/forums/1...then-some.html

And here are a couple of great a/c info pages, with lots of pics.

1979 F100 Air Conditioning

NORTH COUNTRY SPECIALTIES ®

Oct 18, 2014 | 10:04 AM

#20

Josher57

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Nope, I haven't seen that. Again, you da man! There is so much info, finding time and filtering thru some of the bs to get to the meat and potatoes can be difficult.

Research, plan, tinker. Repeat.

Oct 18, 2014 | 10:16 AM

#21

77&79F250

Moderator & parts slinger

Joined: Feb 2007

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From: S/W Missouri, Polk county

What BS? Not in there, maybe some of it just does not apply to you..... but there is something there for everyone. Yea some meat, potatoes, tofu and rice cakes.

Ck out the other 2 last Read First threads, lot of information in there also. And no BS, either. lol.

https://www.ford-trucks.com/forums/1...mpilation.html

https://www.ford-trucks.com/forums/1...ease-read.html

Oct 18, 2014 | 01:40 PM

#22

Josher57

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Sorry, I didn't mean bs on those links, but there is a lot of info out there. Trying to find the right stuff can be difficult. At least for someone who has no idea what he's doing ha

Oct 19, 2014 | 04:22 AM

#23

benbuilder

Fleet Mechanic

Joined: Sep 2012

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77 & 79 F250,

Thanks for all that information. I am putting back the ac in my 77 stepside and am subscribing to this thread so when I have questions, I can look here. Thanks.