Heater Core Replacement - TCCoA Forums
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post #1 of 15 (permalink) Old 01-18-2016, 04:07 PM Thread Starter
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Heater Core Replacement

Getting coolant smell in the car with heat on and a oily film on the windshield, I assume its the Heater Core right?

Has anyone replaced it without removing the dash?

If all else fails get a bigger hammer!

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post #2 of 15 (permalink) Old 01-18-2016, 05:49 PM
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It cannot be removed any other way. The dash stays in, but it needs to be lifted in place.
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post #3 of 15 (permalink) Old 01-18-2016, 07:33 PM
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Also lower the steering column and remove the center console.

1997 Mark 8 LSC

Former owner:
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post #4 of 15 (permalink) Old 02-24-2016, 12:15 AM
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If my heater core goes bad, I will probably bypass it, and live without heat.

Replacing it looks like a gruesome job.
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post #5 of 15 (permalink) Old 02-24-2016, 02:38 AM
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Quote:
Originally Posted by TBird94 View Post
If my heater core goes bad, I will probably bypass it, and live without heat.

Replacing it looks like a gruesome job.
It's not too bad, just time consuming.

I also swapped the dash, and since I have a 1991 XR7, I had to swap the wiring harnesses also.

By myself, it took about a day of work all told.

RwP
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post #6 of 15 (permalink) Old 02-28-2016, 02:30 AM
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The hardest part is finding a second pair of hands when it's time to move the dash.

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post #7 of 15 (permalink) Old 02-28-2016, 01:27 PM
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Quote:
Originally Posted by V8ThunderCat View Post
The hardest part is finding a second pair of hands when it's time to move the dash.
When my heater core was replaced, the dash was cleverly lifted by putting a board underneath it with bottle jacks on both sides. Then it was carefully raised enough to gain access to the core.
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post #8 of 15 (permalink) Old 02-28-2016, 04:22 PM
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You guys use helpers?

I pulled my 1991 Cougar's dash by myself. And put the new one in by myself.

RwP
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post #9 of 15 (permalink) Old 02-28-2016, 08:52 PM
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Just got mine back together a week ago, was down almost 3 weeks.Bought a core at Napa what a POS,took it back and had a radiator shop took a week to build me a good one.Now the original radiator developed a leak and power steering just started leaking.250k miles I guess its time.Had the wife help me pull the dash and steering column .
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post #10 of 15 (permalink) Old 02-28-2016, 11:32 PM
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Quote:
Originally Posted by ttbird View Post
Just got mine back together a week ago, was down almost 3 weeks.Bought a core at Napa what a POS,took it back and had a radiator shop took a week to build me a good one.Now the original radiator developed a leak and power steering just started leaking.250k miles I guess its time.Had the wife help me pull the dash and steering column .
To prevent electrolysis in your cooling system, run a ground wire from one of the heater core nipples to an appropriate location.
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post #11 of 15 (permalink) Old 03-20-2016, 07:42 PM Thread Starter
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Getting ready to finally do this, where's the best place to get Aluminum wire? Odd for me to go looking for Aluminum over Copper but in this cause I see the need. Also anyone see a problem soldering the wire to the core as opposed to using a hose clamp, I have Ag ,Pb and Pb free ?

If all else fails get a bigger hammer!

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post #12 of 15 (permalink) Old 03-20-2016, 07:54 PM
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Quote:
Originally Posted by bowez View Post
Getting ready to finally do this, where's the best place to get Aluminum wire? Odd for me to go looking for Aluminum over Copper but in this cause I see the need. Also anyone see a problem soldering the wire to the core as opposed to using a hose clamp, I have Ag ,Pb and Pb free ?
Solder, brazed, or welded; it should all be the same for corrosion resistance, as a ~zero resistance connection.

(Unless someone sux at making them, lol.)

I'd solder it; and if it's soldered, copper or aluminum won't matter. I'd wash off the flux, after, tho.

I'd use lead solder, it's more durable near a battery; silver is great, it makes it stick really well, but high silver causes issues in weather.

As long as everything is connected together, it won't corrode.
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post #13 of 15 (permalink) Old 03-25-2016, 05:51 PM Thread Starter
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That was no fun at all

If all else fails get a bigger hammer!

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post #14 of 15 (permalink) Old 03-25-2016, 09:42 PM
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Got it taken care of then?

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post #15 of 15 (permalink) Old 03-26-2016, 07:37 AM Thread Starter
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Still have to finish up, all the aftermarket wiring caused a delay.

If all else fails get a bigger hammer!

93 SC Tbird
MPII w/ Plenum,90mm MAF, 85mm TB, 40# Injectors, 255 lph FP, Double IC w/fan, SCT Chip (Tuned by Jerry),3/4" Raised Top, F52-TT TC, SilverFox AOD 550, SPT-R VB
96 1/2 XR7 Sold and Salvaged
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