Thebigwhopp

Member
Dec 5, 2018
68
0
6
22
Buffalo
I have heard several people say in different places its possible to replace the heater core without pulling the dash through the glove compartment. Has anyone done this or can think of a way it would be possible? I was thinking of cuting the box of where you can see it in the dash. Any advice?
 

Attachments

  • heater core box.jpg
    heater core box.jpg
    183.3 KB · Views: 145
  • Sponsors(?)


JMGlasgow

Mustang Master
Feb 19, 2017
774
411
93
40
Do you have air conditioning? If not it's pretty easy in an '85. It does come out through the glove box.
 

MustangIIMatt

I need something stupid to play with
Mod Dude
Mar 7, 2002
8,727
4,456
224
0205201002.jpg


I pull dashes as part of my job. That's a BMW X5 dash removed for a passenger airbag replacement.

Here's some tips:
1. Get a manual. Haynes, Chilton, Clymer, Ford, it doesn't matter. Having step-by-step directions helps a ton.

2. Take pictures. Smartphones are wonderful things. As you take things apart, take pictures. It gives you a reference for reassembly.

3. Stay organized. Magnetic trays, ziplock bags, masking tape and a sharpie... These are all your friends.

4. If it doesn't come out easily, double-check your work. If it's hanging up on something, don't keep trying to jerk it loose. Use a mirror, a flashlight, an inspection camera, whatever you have at your disposal to see what's going on.

5. If possible, have a helper. Dashes are wide and bulky, having someone on each side makes it much easier.
 

Mstng93SSP

You have a nice rear end there Dave.
15 Year Member
Nov 29, 1999
2,095
2,416
184
Mililani, Hawaii
Removing the dash is not hard. It is a bunch of nuts and bolts....nothing more. There are numerous videos on youtube showing the fox dash removal. Follow those and you should be fine.
 

Thebigwhopp

Member
Dec 5, 2018
68
0
6
22
Buffalo
Do you have air conditioning? If not it's pretty easy in an '85. It does come out through the glove box.
After looking at the lmr picture I’m starting to think the car did not come with AC here’s a pic of the setup
 

Attachments

  • 47D70028-AF26-436C-B981-1FF9404F5559.png
    47D70028-AF26-436C-B981-1FF9404F5559.png
    1.5 MB · Views: 143

JMGlasgow

Mustang Master
Feb 19, 2017
774
411
93
40
On a non A/C car the heater core box has a door you can slide the core out of. Your car doesn't have that door. It had factory A/C at one time. The LMR picture on the right is an EFI setup. Google 1985 Mustang GT engine bay pictures and you'll see how it is supposed to look. The A/C lines are routed different on carbureted cars.
 

50notch90

Member
Jun 3, 2006
10
8
13
Greenville IN
I thought I would suggest testing your new one before you install it. Doing this once is bad enough but it would suck to do it twice. You can submerge it in a bucket of water and plug one end while adding a small amount of air pressure to the other. As long as you don't see any bubbles you're good. I was told lung power is good enough and it has worked for me or I've been lucky. It's not a fun job but it's not as bad as you think. Good luck. Oh and be careful putting the hoses back on. You can ruin the new core if you're too aggressive.