Goshdarn heatercore

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Originally Posted by afroman006

The cores are aluminum. The first two I replaced were from Napa and the third was a GM part. $90 down the ****ter on that one. And :flipoff2: to whoever edited my title

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wasnt me

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Originally Posted by fbronco86

I would try distilled water and antifreeze.

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BRILLIANT :rolleyes: Yah I've been running one jug of antifreeze and the rest of the system filled with distilled water since I've had the truck.

Brandon, I've thought about soldering the lines onto the core and may still go that route. It seems a little ghetto but cant be any worse than my putty fix.

Jimmy, I've just been running green **** in it, is dexcool the orange stuff that is supposed to be safe for any vehicle?

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Originally Posted by afroman006

BRILLIANT :rolleyes: Yah I've been running one jug of antifreeze and the rest of the system filled with distilled water since I've had the truck.

Brandon, I've thought about soldering the lines onto the core and may still go that route. It seems a little ghetto but cant be any worse than my putty fix.

Jimmy, I've just been running green **** in it, is dexcool the orange stuff that is supposed to be safe for any vehicle?

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dexcool is the orange **** you're supposed to run in gm vehicles.

http://autorepair.about.com/cs/produ.../aa052601a.htm

more then you ever wanted to know about dexcool.

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Originally Posted by afroman006

BRILLIANT :rolleyes: Yah I've been running one jug of antifreeze and the rest of the system filled with distilled water since I've had the truck.

Brandon, I've thought about soldering the lines onto the core and may still go that route. It seems a little ghetto but cant be any worse than my putty fix.

Jimmy, I've just been running green **** in it, is dexcool the orange stuff that is supposed to be safe for any vehicle?

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I am not sure when they started the dexcool deal. But I do know if you mix them your coolent turns black and gunks up everything.

So you would have to flush the crap outta it to change.

there are no more color designations. there is green stuff that is aluminum safe now. i doubt the truck in question requires dexcool. why do you even have a heater core?

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Originally Posted by Snatch Adams

http://autorepair.about.com/cs/produ.../aa052601a.htm

more then you ever wanted to know about dexcool.

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Good article. According to it if my truck came with Dexcool and I put green **** in it, I'm prety much ****ed. It says in that case just keep using green coolant cause it is prety much impossible to flush all the old coolant out of the system and even the slightest bit of green will contaminate the Dexcool.

IIRC when I got my truck the coolant in it looked like muddy water so it was probably already contaminated. Anything that could contain coolant besides the engine block has been replaced since I've had the truck. I dont even know what kind of coolant it came with, I'll check my haynes manual when I get home.

I always ran Dexcool, but apparently I didn't flush it enough and it corroded through the aluminum...
http://tamor.org/forums/showthread.p...ighlight=tahoe

what year is your truck, and you can stull flush it all the way out. and refill with the correct stuff

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Originally Posted by agjohn02

why do you even have a heater core?

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Did you really mean to ask this?

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Originally Posted by Doug Krebs

Most of them are aluminum, aren't they?

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can you sweat aluminum to copper? i've never tried. acid core solder may work although i usually use it for refrigerant lines.

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Originally Posted by fbronco86

Did you really mean to ask this?

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no

i think I will get my neighbor the AC guy to solder it up for me. You can flush the system with that Prestone Borax junk. I have used it a few times, works pretty good.