C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Damned heater core!

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Old Jan 27, 2004 | 10:21 PM
  #1  
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Default Damned heater core!

I just replaced my original heater core 3 weeks ago. Now the replacement has sprung a HUGE leak. Got a low coolant light this morning when I started the car, checked radiator, it was half empty. Topped it up and went to work. Didn't get a low coolant light on the way home, because it sucked 3/4 of the water out of the reservior on the way home. :mad Lifetime warranty my a** :mad
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Old Jan 27, 2004 | 10:23 PM
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Default Re: Damned heater core! (JCAIRE2)

could it be as simple as a bad heater hose?
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Old Jan 27, 2004 | 10:24 PM
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Default Re: Damned heater core! (JCAIRE2)

Did you find a puddle? Maybe you had air trapped in the core and it's just now full.

Just trying to be optimistic. :cheers:
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Old Jan 27, 2004 | 10:30 PM
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Default Re: Damned heater core! (JCAIRE2)

Lifetime warranty my a** :mad
:lol:

Hey John, I struggled with that one to. I finally decided I would spend the little extra and I ordered a new Delco without the lifetime warranty. There was just something odd about it being almost half the price as the delco.

Anyway, you are for sure it is leaking, is your carpet getting wet? What about the 2 hoses that connects to it outside at the firewall? I know when I changed mine, I remembered thinking, that would be a perfect place for coolant to spray back in through the heater core inlet/outlet holes and make it look like it was the heater core.


[Modified by vette92_1, 9:32 PM 1/27/2004]
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Old Jan 27, 2004 | 10:46 PM
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Default Re: Damned heater core! (vette92_1)

Backing under the carpet is wet. On the bright side, this will be MUCH easier the 2nd time. At least that's what I'm telling myself. :leaving:
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Old Jan 27, 2004 | 10:48 PM
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Default Re: Damned heater core! (JCAIRE2)

At least that's what I'm telling myself. :leaving:
:lol:
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Old Jan 27, 2004 | 10:51 PM
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Default Re: Damned heater core! (JCAIRE2)

Damn.....

....but at least you can put it down on your resume again :D
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Old Jan 27, 2004 | 11:05 PM
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Default Re: Damned heater core! (VetteNoob)

Damn.....

....but at least you can put it down on your resume again :D
I did the last swap at work and I'll do this next one there as well. My boss came back when I was about 1/2 way through, took a look at everything that had come out, whistled, turned around and left, lol. He was amazed that it only took me 6 hours.

I just wish they hadn't started the c4 assembly line with a guy hanging the heater core on a wire and moving it too station #2. At least it's not the radiator leaking, or a headgasket, or tranny cooler failure.
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Old Jan 27, 2004 | 11:11 PM
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Default Re: Damned heater core! (JCAIRE2)

It's that Texas air man.........I'm tellin' ya, stuff like this didn't start happening till you moved. That's when you lost that headlite cover, right? Personally, I think you moved too close to Vettenoob :eek:
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Old Jan 27, 2004 | 11:17 PM
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Default Re: Damned heater core! (Caboboy)

Tim, not my fault I tell ya! I didnt even touch his car.

Though you know.... he did buy something from me that used to be in mine... maybe it was contagious....
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Old Jan 27, 2004 | 11:51 PM
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Default Re: Damned heater core! (VetteNoob)

Tim, not my fault I tell ya! I didnt even touch his car.

Though you know.... he did buy something from me that used to be in mine... maybe it was contagious....
Hmm, don't know if I could part with the hardbar. Might have to have the vettenoobs heebie jeebies exorcised!

:seeya Tim!
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Old Jan 28, 2004 | 08:25 PM
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Default Re: Damned heater core! (JCAIRE2)

Picked up a new AC/Delco unit through my work today for less than jobber cost! Didn't even think to ask about it when I was getting ready to do the last one :crazy:
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Old Jan 28, 2004 | 09:03 PM
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Default Re: Damned heater core! (JCAIRE2)

Hey John, when you get real good at this job, c'mon out to Cali! :D

I'll buy you a brewski.......... :jester
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Old Jan 31, 2004 | 07:12 PM
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Default Re: Damned heater core! (Caboboy)

New heater core record! 3hrs 50mins. See it does get easier the second time :skep: :leaving:

I pressure tested the leaky heater core and the solder joint for one of the pipes had let go completely. :mad :cuss :rolleyes:
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Old Jan 31, 2004 | 08:05 PM
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Default Re: Damned heater core! (JCAIRE2)

Over and over I read horror stories about removing the heater core. You guys are scaring me. If I ever need to have this done I think I will leave it for the pros. Would you fellas say this is no job for mechanically challenged owners? Rate yourself on a 1 to 10 scale and rate this job as well.

Thanks
Dan
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Old Jan 31, 2004 | 08:21 PM
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Default Re: Damned heater core! (brdd)

My core blew the other day too! Lucky it is still summer here. I am going to leave it till winter time so I can take my time and do a dozen other jobs under the dash at the same time.
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Old Jan 31, 2004 | 08:26 PM
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Default Re: Damned heater core! (JCAIRE2)

New heater core record! 3hrs 50mins. See it does get easier the second time :skep: :leaving:
John, I'll remember you said that when mine lets go. I bet when you do my heater core, you'll have it down below 3 hours :thumbs: :lol: :D
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Old Jan 31, 2004 | 08:30 PM
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Default Re: Damned heater core! (VetteNoob)

John, I'll remember you said that when mine lets go. I bet when you do my heater core, you'll have it down below 3 hours :thumbs: :lol: :D
:lol: That puts him close to two and out on mine :D
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Old Jan 31, 2004 | 08:53 PM
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Default Re: Damned heater core! (vette92_1)

At least that's what I'm telling myself. :leaving:

:lol:
and just keep telling yourself that.... :thumbs: :thumbs:
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Old Jan 31, 2004 | 10:15 PM
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Default Re: Damned heater core! (JCAIRE2)

I pressure tested the leaky heater core and the solder joint for one of the pipes had let go completely.
JCAIRE2, How would you describe the broken solder joint? I'm asking because replacing the core is my next big challenge. I have purchased an aftermarket core and will definately have the core pressure tested prior to installation.

Thanks for the post!

:cheers: -JRC-
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