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Heater core - 3/30/2007 8:59:18 AM

derbarbarian

Posts: 17
Joined: 12/17/2006
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Has anyone replaced their heater core?... Mine took a dump last night, wasn't able to see out of the car and boiling hot water started pouring in on the passenger side.. It was fun.. I looked around and found parts but the problem is tearing the dash out of the car to get to it.. any suggestions you could throw my way would be splendid.

< Message edited by derbarbarian -- 4/4/2007 3:19:01 PM >

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RE: Heater Coil!! - 3/30/2007 7:47:38 PM

InExile

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From: Black Mountain, NC
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what kind of a car ... kakarot has a nice writeup on this heter core deal on his cardomain page

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RE: Heater Coil!! - 3/30/2007 7:59:04 PM

derbarbarian

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93 90CS, non quattro.

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RE: Heater Coil!! - 3/31/2007 1:39:08 PM

derbarbarian

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If i were to bypass the heater core and just put a U shaped pipe in there would the car run without over heating?.. it's getting to the time of the year when i really dont need heat..

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RE: Heater Coil!! - 3/31/2007 1:39:22 PM

InExile

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then go ahead and head over to the site to read the DIY

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RE: Heater Coil!! - 3/31/2007 1:53:40 PM

derbarbarian

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I know how to do it, i'm just wondering if it's going to overheat the car..

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RE: Heater Coil!! - 3/31/2007 2:06:06 PM

InExile

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well you could just bypass the heater core ... just stick both of the heater core hoses togeter in the engine bay ... no leaks and you'll have circulation but no heat and it shouldn't overheat

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RE: Heater Coil!! - 3/31/2007 2:28:04 PM

derbarbarian

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that's what i was saying to begin with

already done. i just need to run it for a while to make sure it's good.

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RE: Heater Coil!! - 3/31/2007 4:09:28 PM

kakarot

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From: Brooklyn, NY
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In our cars, heater core is always on. Doing the pipe in a pipe should not overheat the engine. However if it does, you can always do what I did at the begining, it is to take 2 rubber peaces like plugs, from strauss or autozone, small enough. Then Stick them into the pipe. Too cut off the circulation.

Later I simply fixed my heater, for like 40 buks or something.

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RE: Heater Coil!! - 3/31/2007 8:31:46 PM

derbarbarian

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Well, i bypassed the heater core completly, and i have a U pipe in there, but after driving less than a mile the Liquid temp/level gauge comes on, and the car starts to overheat and what not. So, a little lost of that one.. the water is circulating but overheating.. any ideas

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RE: Heater Coil!! - 3/31/2007 9:20:34 PM

kakarot

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umm, if thats a problem, and not that low liquid, then just go to something like autozone or strauss and get that rubber plugs.
or
Fix the heater core.

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RE: Heater Coil!! - 4/1/2007 12:25:06 AM

InExile

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try runnin' without a thermostat

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RE: Heater Coil!! - 4/1/2007 12:18:38 PM

kakarot

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quote:

ORIGINAL: InExile

try runnin' without a thermostat

bad idea.
better to permamently open the thermostat that to take it out completly.

Reason is thermostat works as two ways switch. It balances the short loop and long loop. taking it out, will make short loop major. and will couse overaheating. So basically jaming the thermostat to be open is the way to go.

But I think its easier to repair the heater core that to do thermostat.

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RE: Heater Coil!! - 4/5/2007 1:23:18 PM

derbarbarian

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How difficult is it to access the thermostat?

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RE: Heater Coil!! - 4/5/2007 2:11:50 PM

kakarot

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From: Brooklyn, NY
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harder, its behind timing belt, well, heating core and thermostat are equally paintfull

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Also for DIY on Heater core and timing belt

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Post #: 15