Quick way to change heatrer core(2-3hours)
11-29-2015, 04:24 PM
#151
Registered User
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.
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.
11-29-2015, 09:20 PM
#152
Registered User
01-16-2019, 06:39 PM
#155
Registered User
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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Clunk (09-19-2022)
02-20-2019, 06:53 PM
#156
Registered User
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.
02-20-2019, 08:27 PM
#157
Registered User
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.
The following 2 users liked this post by KATOOM:
Clunk (02-20-2019),
Robert Rausch (02-22-2019)
The following users liked this post:
Robert Rausch (02-22-2019)
09-19-2022, 11:12 PM
#159
Registered User
Thread Starter
Wow. Cannt believe this thread is still here, was digging it up for someone who was asking.
Dad is still using the old 2001 as his farm truck. Still no leaks on the clamps, never had to tighten. Evap still holding on.
Dad is still using the old 2001 as his farm truck. Still no leaks on the clamps, never had to tighten. Evap still holding on.
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Clunk (09-19-2022)
09-20-2022, 07:13 AM
#161
Registered User
Update: After a year the heater hose I used to connect the new core to the old lines began leaking. I took it to my mechanic and paid his price, but he did it right.
10-05-2022, 08:24 AM
#162
Registered User
I did mine 6 years ago. Still going strong.
11-05-2023, 03:18 PM
#164
Registered User
Thread Starter
Well, Dad sold the old dually last month. AC had quit. No idea if it was the evap or something else. Heater core still.workimg fine. Those clamps that people were saying would back.off and leak never did. Considering it was done back in 2009 Id say this was one of my more successful hacks.
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