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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Heater core change-out on a 91 PU!

Old Dec 28, 2009 | 03:16 PM
  #1  
iamsuperbleeder's Avatar
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Heater core change-out on a 91 PU!

Got that itch today to dig into replacing my heater core


Man I tell ya, them Japanese didn't want these dashes falling apart, lol.


Started at about 1pm, and by about 4:30, I was installing the new core and reassembling

The new core's in, and I've reinstalled the support bar, so tomorrow I just have to put the rest of the dash back in, then go under the hood and hook up the hoses, and I'll have heat again!




So here's the inside of my truck, laying on the garage floor, lmao

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...who needs cup holders anyway...

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pile-O-screws

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UUHH, I SEE IT!!!

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get all that crap outta the way, and you can start to get to it

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a little wiggling, and removing a few more screws, and you can wiggle the box that the core is in, and get it to pull out far enough to remove the core no need to depressurize the AC system!

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TADA!!!

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mmmm, yummy...

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Old Dec 28, 2009 | 03:37 PM
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Damn, I thought the one in my 79 Camaro was a biotch to change.
Those are however about the best pics I've seen of where its really located.
Thanks
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Old Dec 28, 2009 | 04:06 PM
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Nice job 'bleeder!! I really need to do this too. Was it leaking too or is that just from pulling it out?
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Old Dec 28, 2009 | 04:24 PM
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If you can see it, you can get it out. If you can touch it, you can get it out. "But Mom, cars are cool!!!!"

Last edited by Thelast83inNJ; Dec 28, 2009 at 04:31 PM.
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Old Dec 28, 2009 | 04:33 PM
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From: Lake City, Fl
Originally Posted by BigBluePile
Nice job 'bleeder!! I really need to do this too. Was it leaking too or is that just from pulling it out?
was it leaking?



why else would I be replacing it?






lol, yes it was leaking. It's actually been bypasses for almost a year, and that crap was still in there...
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Old Dec 28, 2009 | 05:03 PM
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Mine never leaked but it quit warming the air going through it.I rigged up a garden hose to it and BLEW the junk out of it,it now works like new.
BigBlock
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Old Dec 28, 2009 | 06:00 PM
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From: Lake City, Fl
Originally Posted by Bigblock
Mine never leaked but it quit warming the air going through it.I rigged up a garden hose to it and BLEW the junk out of it,it now works like new.
BigBlock
that's what I did too, about a month before it started leaking
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Old Dec 29, 2009 | 04:24 AM
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That looks like fun.
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Old Dec 29, 2009 | 04:59 AM
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nice job....now how about some pics of your nova
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Old Dec 29, 2009 | 06:06 AM
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Can you drive without all that dash in place? I know you'll have no speedometer and whatnot, but is it still driveable?
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Old Dec 29, 2009 | 07:03 AM
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Were you smelling coolant when you were running the heater?
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Old Dec 29, 2009 | 07:40 AM
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From: Cincinnati, Ohio - Amelia is the exact place. There is no one else on this site from where I am. Seems like everyone is from Cali or Washington. I guess I need to move.
What is that a 68 or 9 Nova back in there? I had a 72 in high school. Now I have a Toyota and a 66 Mustang coupe. Yota's and hotrods!
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Old Dec 29, 2009 | 08:10 AM
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Me too

I just changed mine out yesterday, it was a bitch but heat coming out of the register makes it worth it.
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Old Dec 29, 2009 | 08:46 AM
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From: Lake City, Fl
Originally Posted by DupermanDave
Can you drive without all that dash in place? I know you'll have no speedometer and whatnot, but is it still driveable?
well I suppose you could, but I'm not sure that I'd want to, lmao

Originally Posted by BigBluePile
Were you smelling coolant when you were running the heater?
oh yeah... it started leaking on me when I was on my way to work, and you could actually see a mist of antifreeze coming out od the vents... it was actually so bad that breathing it in was making my chest hurt...






And the nova, yes, it's a 69; PO put these stupid Yenko strips on it... it's far from a Yenko pretty much all stock/restored aside from the crate 350 and a TH350 behind it












but alright, time to eat some luch, and get out there and get it back together


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Old Dec 29, 2009 | 09:26 AM
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From: Cincinnati, Ohio - Amelia is the exact place. There is no one else on this site from where I am. Seems like everyone is from Cali or Washington. I guess I need to move.
Yeah, I didnt think Don Yenko made Dueces in that color. My name is John Stranko) so all my hot rod buddies call me John Yenko, really annoying cause I am a ford guy. My other wallet busting hobby below.
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OK BACK TO YOUR HEATER CORE!!!
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Old Dec 29, 2009 | 01:52 PM
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From: Lake City, Fl
lol, aw comon, put a bowtie block under the hood of that Stang

nice look'n engine ya got come'n along there, and clean car!

I too once play'd around with a Blue Oval a few years back that was a good car, considering the kinda abuse I put it through, lol

only mine was a punched out, and eventually nitrous fed V6

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Well, she's all back together!

In typical heater core replacement fasion, I ended up with ONE EXTRA SCREW... but, no leaks, and the heater will melt your face off now


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nice and neat, new hoses!

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and yes, my motor is dirty... shame on me... went down a washed out dirt road about a week ago, and ended up hitting about 6" or so of merky water at around 35mph, and it threw it everywhere in the engine bay I just have yet to clean it up

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All in all, it really wasn't as bad as I was expecting it to be. As long as you TAKE YOUR TIME, AND KEEP TRACK OF ALL THE SCREWS AND BOLTS, it's pretty straight forward. The hardest thing was getting the steering column bolted back up to the support bar, because of the way you have to lift it, slide it onto a hook-like thing, and then push it up to line up the bolts... that's intersting to do by yourself...

I would say total project time was about 8 hours... and that's with making two trips to the store (needed foam to put around the sides of the heater core the first day, and then today I realized that I didn't have any antifreeze so I had to go and get that)





Last edited by iamsuperbleeder; Dec 29, 2009 at 02:03 PM.
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Old Dec 29, 2009 | 04:18 PM
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Whats wrong with you brake booster?






























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Old Dec 29, 2009 | 04:21 PM
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Our holiday break was spent doing the same thing!!
Nice!
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Old Dec 29, 2009 | 04:36 PM
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Originally Posted by BigBluePile
Whats wrong with you brake booster?






























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Old Dec 29, 2009 | 04:40 PM
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heheehhe man that just DOESN'T get old!!! LOL!!
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