How to Remove the Heater Core on a Mustang 

Awesome! Thank you!

Thanks! 👍

Yeah just did this on my 69. It was no fun. I loosened the dash and was able to get out… but not before dropping a ton of coolant on my new carpet. I put a trash bag over the carpet first which helped.

Yeah, I think it will be pretty easy to refurbish this system, I just gotta stop spending money on other, more fun parts. :)

I did one in my girlfriend's 70 Cougar...that was tough. Then I did one in my '93 Vette...that recalibrated the meaning of the word tough! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-IOHuxkeSdu0.html

Yes, I used that core on my last Mustang, definitely easier to service with the longer tubes. :)

Yes, I will be doing the rebuild, but it will be a bit. :)

Thanks! Not sure I'll get it done fast enough, the cold weather is coming fast. :)

@@AndyKruseChannel that it is. We have snow here in Utah already.

@@AlfsMustangGarage Yeah, it's snowing now. Ugh. :)

Thanks!! Wheels are American Racing - Torque Thrust II, size 16x7 w/ 5x4.5 bolt and 4 inch backspacing, part number VN2156765. The tires are Falken Azenis RT615K+, size 225/60/16, all four. :)

@@AndyKruseChannel thank you! Looking forward to your future videos

You can tell if you've got a long tube heater core by the location of the hose clamps. If you can get to them in the engine bay, you've got a long tube core, and replacing the hoses will be easy. Otherwise, the hose clamps will be on the back side of the heater box, which means it needs to come out. If this is the case, I recommend disconnecting the hoses at the engine and pulling the heater core out and feed the hoses through the firewall. This will make it easier to keep the fluid from spilling on your new carpet. Since you'll have everything out to replace those hoses, maybe you chip in a few more bucks and upgrade to that long tube heater core, for next time. Good luck, you've got this! :)

⁠@@AndyKruseChannel do you think that I’ll still need to disconnect the cables for the heater controls if I pull the box away from the firewall, free of the bolts? I’m curious if that will get me enough room for the host clues.

@@slappy1965 There's enough play in the control cables to move the box down to get to the hose clamps without needing to disconnect the cables. It is easier to just disconnect them while you're doing all this stuff, but it does add to the list of tasks to complete during your replacement. :)

No problem!

I have, but it's pricey. It's on the list, but below other more fun items I want right now. :)

Do you have a high pressure or high volume water pump? I wonder if that is causing the heater core to go?

@@AndyKruseChannel It should just be a stock pump. Not fun when you put your foot in it and it blows all over the inside of your car and covers you and the windows with steam. I just recently read about some of the fox body mustangs having the problem and solved it with a reducer. I hope it does.

Thanks for the heads up. :)

This car does not have AC, nor are there factory holes for an AC system. The holes by the fan are for the heater lines going to the heater core.

Thanks. I guess the previous owner added the holes for an ac that was in the car when I bought it. I’ll try to get some body plugs to see if I can block them off until needed.

Yeah, it's pretty bad, it's easy to see why people opt for the plastic units now. :)

Yes, I had that problem on my last Mustang. :)

@@AndyKruseChannel Pretty sure I commented on that one too. 🙂

It’s actually pretty easy just put one hose to a bucket and the other put a air compressor or even just use your mouth to blow out the fluid.

Appreciate it

Sounds like an opportunity for an upgrade!

I got lucky, cut hoses and missing screws make it really easy to pull this box out. :)

It's these kinds of projects that keep us young. :)

Agreed, quality original parts go pretty fast these days. 🙂

@@AndyKruseChannel The old parts are financing a lot of my build haha. Even a decent shape original 2bbl with the tag still on it was worth $100. I see a lot of people just chuck the old parts and it hurts.