"As seen on the internet".........

[towcat]

no thanks to the rapidly disappearing copper/brass heater cores, the newer alu ones are now the norm. and so in the electrolysis that comes with them. Over the weekend, I read about someone putting a ground strap on his. I filed it away under the useless but worth remembering file in the dark recesses of my mind. Wouldn't you know it, but I blew a core on my way home yesterday morning. So, I decided to give the ground strap idea a try. Either it works and my heater core lasts more than a few years or it doesn't. One more thing, I zip tie the heater hose to the AC drier pressure port to isolate the motor vibrations to the drier rather than sending all of it to the heater core.

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[Clb]

I had 40 k on my oem core.
Truck has 47 factory mikes on it.
Replaced the hoses with gates hose.
Got 8' of hose.

Leaked like a sieve....
Got a brassworks core(its gotta be the core right !?)
Install new core.
Leaks like a sieve.
Replaced the hoses.
Leaks like a sieve.
Bad hose.
No electrolysis on the factory core!
Btw
Tell brassworks not to paint the core offgassing will chase ya outta the cab for hours.
Ymmv

 

[Fordtruckfan89]

Brass heater cores as well as aluminum motorcraft cores are available from rock auto still. Diesel used brass till 87, gas did later on. HC-3 is the part # for the brass one, it's around $77. Aluminum is more, it's either hc-7, around $87. Ford said in a 2001 tsb to ground 84+ trucks with the issue, in 2006 said to not ground them,but only listed 97+ vehicles.

Dusty

 

[Clb]

When did you find a brass core for $77??

 

[theSHERPA]

When did you find a brass core for $77??

It’s actually $73.79 right now on Rock Auto.

 

[chris142]

How rusty is your cooling system? Rust kills aluminum with electrolysis. Use a volt meter and see if you have over .3V....Any more any heaters will get eaten in a hurry.

 

[towcat]

How rusty is your cooling system? Rust kills aluminum with electrolysis. Use a volt meter and see if you have over .3V....Any more any heaters will get eaten in a hurry.

mime's pretty fresh, thanks in part to the Techachapi pass overheat back in Sept/Oct.

 

[Clb]

Hc3 Looks like tin, cannot get any info from the site.
But
I hope there is one available

 

[Fordtruckfan89]

Look on rock auto like I've said, I literally bought it two weeks ago. It's motorcraft and brass. I just put it in Friday.

 

[Clb]

Nice.
I did(but shall take your word for it)
As there were NONE available a while back when I needed one.
Only brassworks.
All else was alum...
My google foo is weak obiewhan