: How to replace heater core on '89 Brougham?



Night Wolf
09-17-07, 10:21 AM
How do you get to the heater core on this thing? Is it pretty involved?

Rich has a '89 factory service manual to give me, but can't find it right now... I do however have the factory service manual for my '79 DeVille.... I don't think the design changed much, so would I be able to follow that?

But... heater core is bad, I've got the new one, just gotta put it in... one of those little projects for me.

96Fleetwood
09-18-07, 04:01 PM
I would like to know the same. The heater core on my 1992 needs to be replaced before winter rolls in...

AElayyat
09-20-07, 10:13 PM
damn what gives with all of the bad heater cores? the one on my 85 fwb is screwed up as well.

My_favorite_Brougham
09-21-07, 01:21 AM
Never once had a problem with mine. ;) It cant be that endemic...lol

Abadox
09-21-07, 09:43 AM
On my 1987 Brougham it's all done from the firewall.
Dig all the "pitch" black stuff from around that plastic box.
Remove all the screws....there are four or five large screws in there to mounting it to the firewall.
You will then see the heater core,pull it slightly back and up.
Some might tell you to drop the whole dash....NO....or through the glovebox fix....NO!
Took me about an hour & a half.

The Ape Man
09-21-07, 03:18 PM
Most of those heater cores go bad when a heavy-handed person leans on the heater hose while changing plugs. Another way to kill one is by replacing heater hoses without slicing the old ones off a little at a time.

Relatively easy core to replace. All done underhood. 1/4" drive tools are nice to have. Bring the shop vac to clean out all the debris near the air conditioning evaporator unit while you are in there. Makes the air conditioning system much better.

Night Wolf
09-21-07, 09:00 PM
Awesome! Atleast its not another "remove the entire dashboard" that the Town Car was....

I have no idea why its bad... it was like that since I got it, my step father told me it leaks and coolant smell enters the car so he put an in-line ball valve on the inlet to prevent coolant from going thru it.

So, I am going to replace it, I replaced all the A/C stuff, but need to get it serviced, then I'll have heat and A/C.... but the electronic controls still need some attention.

1990CaddyBrougham
09-22-07, 12:08 AM
Good to know, since i had to replace the one in my town car wiht only 62k, my mothers town car, and a friends. That ='s hardcore dash removal... :(
When i hear heater core i run.... not so bad with the caddy though.

Night Wolf
09-22-07, 07:33 AM
Good to know, since i had to replace the one in my town car wiht only 62k, my mothers town car, and a friends. That ='s hardcore dash removal... :(
When i hear heater core i run.... not so bad with the caddy though.

Bring back any memories? :)

http://i43.photobucket.com/albums/e363/InoventionsEast/Lincoln/4-16-07/PDR_1028.jpg

Thats what I did NOT want to do on the Caddy :)

The Ape Man
09-22-07, 07:18 PM
Try a Mercedes W140 or W201.

RocketFast321
09-24-07, 12:42 AM
If its like my 84 it pretty simple. You just have to take this off.
http://img205.imageshack.us/img205/3764/dscf27902lf.jpg
But it has like 15 screws holding it in place
http://img228.imageshack.us/img228/9907/dscf2791wp1.jpg
Making sure its on good.
http://img205.imageshack.us/img205/17/dscf27998sy.jpg

1990CaddyBrougham
09-25-07, 08:29 PM
Bring back any memories? :)

http://i43.photobucket.com/albums/e363/InoventionsEast/Lincoln/4-16-07/PDR_1028.jpg

Thats what I did NOT want to do on the Caddy :)


:suspense::alchi::eek::worship: