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Quick way to change heatrer core(2-3hours)

Old 11-29-2015, 04:24 PM
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Originally Posted by KATOOM View Post
I never posted back but I recently re
Here's some pictures to help understand what I described above.....

This was as far as I had to move the dash back.



Here's the old core tubes cut off with the heater hose still attached.



The new core wrapped with foam.



The new core tubes spliced back together with heater line and constant tension hose clamps.





How they look sitting back in the truck.



This is a top view.....but just note that the new core is not fully seated in its spot, nor is it clamped down or the ground strap put back.



Well worth not having to go through all the trouble of removing the center console, unplugging all the wiring and vacuum lines, removing the dash, evacuating the freon from the HVAC system, disassembling the AC lines, and removing the heater box away from the firewall. But again, to each is own.
to change the subject a little, the pic of the dash. it looks like a new dash?
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Old 11-29-2015, 09:20 PM
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Originally Posted by johnh View Post
to change the subject a little, the pic of the dash. it looks like a new dash?
Thanks. This truck spends most of its time parked in a garage, and I also have a dash cover which I took off when I did this job. You can see the various velcro tabs stuck on there.
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Old 12-14-2015, 01:49 PM
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Thank you!

Needing to do this myself and was dreading it. Your instructions rock! Thanks tons.
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Old 12-14-2015, 07:41 PM
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You're welcome and I hope it goes smooth for you.
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Old 01-16-2019, 06:39 PM
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I just changed out the heater core on my 1995 truck. Took me 6 hours. Tore up the dash just a little more and I broke a tab off the glove box, but since my mechanic wanted $670 to do the job and I only spent $70, I thought it was well worth it. I did have some trouble getting my dash out of the way. I couldn't lower the steering wheel enough to really pull the dash back. But I got it back enough. I used Breeze Constant Torque hose clamps--I don't think they will be loosening. I got the new heater core at NAPA. I just asked for one to fit my truck and they gave me the one with the swivel connectors. It worked well. I used an angle grinder to cut the tubes. It's NICE not having to smell coolant anymore. I had been smelling coolant for 5 months, but never saw any drips. Glad I got it done. HUGE THANKS to the original poster.
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Old 02-20-2019, 06:53 PM
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I have a new problem tho. When I've got heat on max, and the selector **** for air control on "recirculate", cold air comes out of the holes/crack in the dash, but only when the truck is moving down the road. When I've got the **** on the other settings--where outside air comes through the heater box--no cold air comes from those same places. This probably means that I missed connecting something securely. Any guesses where I might start looking? Also sometimes it takes awhile for the recirculation door to close when I'm driving--sometimes 10 or 20 seconds--this is also new since I did the heater core.
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Old 02-20-2019, 08:27 PM
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Sounds like you didnt realign the vent openings or the seal came off before putting the dash back in place... As for the blend door, take a look and see if its moving like it should. It could be broken/stripped and then you'd need a heater treater to fix it.
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Old 02-20-2019, 10:27 PM
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You might also check the vacuum line from the vacuum pump, next to the power steering pump, to the firewall and beyond for a cracked vacuum line.
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