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Heater core gone bad need help

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Old Dec 29, 2015 | 12:41 AM
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Default Heater core gone bad need help

Hello all
I have 05 vette an having few problems The heater core is bad. I have new heater core an started to take apart to do it. I need some help. I have a manual now that I got online an it's not very clear on how to disassemble. I have the dash out. I need to know if the intake needs to come off in order to do this or not ?? I'm guessing it does need to come off to reach the the heater core tubes Any help on this would be great This is my first corvette an having all sorts little problems I'm in hopes to get them straighten out by spring. Thank you all for your time. I did do a search an can't find any info on the c6 heater core installation. Have good night !!!)))
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Old Dec 29, 2015 | 09:50 AM
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Looking quickly at my 2005 service manual...no the engine intake manifold does not need to be removed.

Without more info you mention heater core tube access.
These seem to be attached to the housing and will come out with the box as you lift (wiggle) the box out of the dash and firewall holes.

Good luck.
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Old Dec 29, 2015 | 02:44 PM
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Isn't there bolts up in behind the intake that need access to get to? What holds the heater core tubes through the firewall. Has anyone done a heater core in the 05? Any help would be great I'm stuck in the middle of doing this an don't wanna take things apart if I don't need to. Thank you
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Old Dec 29, 2015 | 09:37 PM
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Old Dec 29, 2015 | 10:55 PM
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Not trying to make your job worse, but what online manual are you looking at? A few years back there was some scam going on about a very inexpensive online manual, and it wasn't very good compared to the Helms Manual.
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Old Dec 30, 2015 | 05:08 AM
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It looks same as them pics. I understand how remove it from the hvac box I need know how remove the box from the car
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Old Dec 30, 2015 | 04:37 PM
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Anyone???
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Old Dec 30, 2015 | 04:48 PM
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Old Dec 30, 2015 | 05:04 PM
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See step 29 How can access those retaining nuts an bolts Aren't they behind the intake manifold ? This is where I'm stuck An also seems pass side air bag is in the way. Does that need come out too ?
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Old Dec 30, 2015 | 05:44 PM
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You will spend more time trying to get it out with the intake there. The intake comes off in like 15 minutes.

It really would make it easier to do.

DJ
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Old Dec 30, 2015 | 07:29 PM
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Well that looks like a blast

(intake is very easy to remove. If it's in the way, yank it and save yourself the PITA)

Last edited by schpenxel; Dec 30, 2015 at 07:30 PM.
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Old Dec 30, 2015 | 08:16 PM
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Originally Posted by djbrun
You will spend more time trying to get it out with the intake there. The intake comes off in like 15 minutes.

It really would make it easier to do.

DJ
I havn't swap one out yet either, and by the looks of it, i hope I never do. rather do the gas tanks lol. If you can't get to it any other way I guess the intake will have to come off. It's pretty quick like DJ said and it will save you from continuing to turn in circles
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Old Dec 31, 2015 | 05:44 PM
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Ok I'm going to work on it now. Will keep u posted. I'm surprised a Arizona car having a bad heater core But leaking on pass floor I'm assuming it's that
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Old Dec 31, 2015 | 06:02 PM
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Arizona? If I wasn't from the great white north Id bypass that in a heartbeat. Lol. Well at least until I had a few things to take care of
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Old Jan 2, 2016 | 08:29 PM
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Yeaa I'm from Maine so I need heat lol. Got the car from Arizona tho
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Old Jan 2, 2016 | 09:21 PM
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Though if you wanted to be sure that's what it is you could bypass is temporarily
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Old Jan 3, 2016 | 12:59 AM
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It was bypassed, he hooked it up and found the heater core bad.
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Old Jan 3, 2016 | 02:02 AM
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Originally Posted by Maine04609
Yeaa I'm from Maine so I need heat lol. Got the car from Arizona tho
ok I see. I'm in Quebec but park it early enough not to need the heat but if the windows fogged up without it i guess that wouldn't be very good.
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Old Jan 3, 2016 | 08:26 PM
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Yea it's pain even on summer nights heat would be nice. Ok so I got the bolts behind intake out all Says there is 4 that hold it in. Well I've tried everything an it will not budge it moves alittle bit but will not come out has anyone done the heater core. Maybe a c5 is the same box style ? Please some one help I'm about ready
Take a bfh to the thing. Thanks
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Old Jan 3, 2016 | 08:34 PM
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Keep in mind there is a brake vacuum hose that connects on the back of the intake. It gets wedged between a few things so it can make it tough to get the intake to come off sometimes.

See if that's it

Last edited by schpenxel; Jan 3, 2016 at 08:34 PM.
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