Lincoln Heater Core Replacement

Lincoln Heater Core Replacement

This video is not meant to be a professional instruction on how to do this work!!! I wish I could do one!!! Overall, I am just showing you what’s involved to…

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DOLRED says:

Doing a heater core does not involve the AC system. You won’t even notice it while working on the heater core (because the AC evaporator coil is located upstream from the heater core box).

Dharg100 says:

i have a heater coming in the mail,i rather do it myself than go to a shop.and do the a.c need to be recharged when im done, if so how?

DOLRED says:

If the heater core is leaking—the fluid will be antifreeze; feel like antifreeze (slick like) and smell like it. Wet floors can be caused by exterior leaks, etc.

Dharg100 says:

my floors are wet but car drive good.my heat core is gone is that the reason why my car is wet?

DOLRED says:

No—only panther platform–’80s T-cars.  I have no info on later models. Check Lincolnsonline forums/tec info.

DOLRED says:

No, cannot say that I smelled any burnt odor. It is pretty much a smell of antifreeze perhaps also a fogging of the windshield if you use the defrost. There is a set of resistor coils in the air chamber–they permit the fan to operate on lower speeds. If you use the high speed fan speed and smell nothing, then maybe they are a problem–? Other than that, it could also be the fan motor.

pmffmp says:

I have a 1990 tc, would this process be relatively the same anyone know?

hamlinjesse says:

Thanks for taking the time to make this video. I just replaced my heater core in my 1984 town car using your video.

hamlinjesse says:

@TheMattanddalorean let’s hear your rundown then. Did it involve a saws all?

DOLRED says:

I believe (if I remember), those 2 thin vac lines are part of the Auto-Climate control—and go through the firewall behind the engine. If you do not use the Auto Climate System –maybe it wont impact anything. The problem is whether you have created a vacuum leak by leaving them disconnected–I do not know.

thewolves8u says:

So I just replaced my heater core in my 1988 Lincoln Town Car following this video and my Haynes manual as a guide. Took me much more than the 6 hrs as well. So I got everything back together and the heat works with no antifreeze smell. One problem though that I now notice from rewatching this video is I forgot to rerun the vacuum lines through the firewall. Now thinkin back I don’t ever think I removed them on the motor side either. Any idea what type of effect this will have?

TheMattanddalorean says:

How long did that really take u… Took me 15 mins i could show u a lot of short cuts

DOLRED says:

Thanks for reply!

DOLRED says:

The toughest part is pulling the core plenum box off its mount and remove it. You have to rotate the thing downward–meaning the coolant pipes have to face down toward the passenger carpet. Make sure you plug them on the engine side first. I used cloth stuffed into the openings. Otherwise you will end up with a cup or so of coolant on the carpet.

DOLRED says:

Thanks—-yeah a mechanic at work explained to me saying that no matter what fan speed selection you make, the power drawn is always the same. And here, all these years I thought that if you choose low speed, you are saving battery power!!!  Not so!!! Weird–while checking for a vac leak today I crawled over the top of the engine to look at the firewall and observed the resistor block mount on the firewall—it is held in place by two screws. I thought it was almost inaccessible. Not so.

1995bisquick says:

at 17:52 you wanted to know what that coil looking device was well its a blower motor resistor and what it does when you set the blower controll on low speed it increases resistance and when on high speed it decreases resistance (allowing more electricity to run the windings in the motor.

1995bisquick says:

You actually simplified this I tried to read the shop manual and didnt understand it Good job, it dosnt look as hard as it seemed

462ANIMAL says:

Cool.. The Blue sensor under the dash pad passenger side is for your heat, not sure if you know. I have many Lincolns I don’t drive Town cars, have a few but they’re just parts cars. I have mark VI’s

DOLRED says:

Yeah, I was following instructions on the Tech info written by Lincolnsonline website. Thanks for the info on the resistor. I did not know what those coils were nor the diode looking device attached. I thought they might be related to the auto climate–which I had previously disconnected (air wise). At one point when I was repositioning the plenum back in place, I thought I might have scrapped the coils with the heater pipe tubes–but all’s well it seems. 

462ANIMAL says:

WOW you took alot of stuff off, the thing with the coils is a blower fan resistor for your fan speeds.

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