heating core replacement

[bluegunz]

My heating core *shoot* the bed, i got a new one , but before i rip apart the whole dash i wanted to check with u guys. Does anyone now exactly whare it is located? any help will be appreciated ty.

[clm2112]

Hose clamps in the engine bay on the passenger side firewall, then it comes out under the dash on the passenger side. It's not too bad just remember that it is somewhat glued in place by the sealant used around the firewall. Some wiggling will be required.

Before getting started, take a peek under the dash on the passenger footwell and look for the A/C temp control vac actuator. There's a plastic cover bolted on behind it that seals up the end of the airbox. That comes off to let the heater core come out without removing the entire blower housing.

[DocDetroit]

Oh boy!
I wanna hear any advice on this one!
my heap's a '92, but someone was telling me on another forum that it isn't so bad, and you can actually get at it without dismantling the dash. I sure hope so...the nights are starting to get a little chilly here in Philly.

[BillBoost37]

First thing you should do is reach up over the cover and unhook the actuator arm from the air mix door. Unplug the electrical connection to it. Remove the heater hoses on the firewall. A spring clamp tool from Sears may be invaluable in this tight working area. Then looking back up under the dash, remove the 2 5.5mm screws that hold the cover on the side of the heater box. Pull back the carpet and padding to assist in sliding it out.

Heater core is now exposed.

[Bob Dillon]

I just used a long screwdriver to knock the nipples and hoses off the firewall side for disassembly. Grease the nipples on the new heater core and the inside of the hoses before reassembly, it makes it easier to slip them on. I also used just regular ol' hose clamps on the firewall side because it was lots easier to reinstall them.

I thought this job was going to be a bear on my '99, but I was able to wrestle the old heater core out, install the new one, and button 'er up in around an hour.

[imidazol97]

Someone else had posted a couple picts of a car without the dash. I'm not sure what year and how close it is to your car.

[bluegunz]

Thanks again, you guys are always a big help.

It came out pretty easy, the cover gave me a bit of a hard time,but it wasn't to bad.

[quote="Bob Dillon"]I just used a long screwdriver to knock the nipples and hoses off the firewall side for disassembly. Grease the nipples on the new heater core and the inside of the hoses before reassembly, it makes it easier to slip them on. I also used just regular ol' hose clamps on the firewall side because it was lots easier to reinstall them.


........But the most important thing is i got heat now!!