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Old 11-07-2013, 11:38 PM   #1
86c20
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heater core replacement

ok so the core let go some time back and i just bypassed it well now the wife is driving the truck and she wants heat. i dont know way we live in new england not like it gets cold lol this is a none ac truck 86 c20 what are the steps to do it? and also any hints? thanks, mike
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Old 11-08-2013, 01:07 PM   #2
xrcr
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Re: heater core replacement

Don't remember steps but it is way easier with no ac. Stand on your head and look up under the dash. Can't remember if taking glove box out makes it easier but it is an option.This may not even be necessary. Thinking on a non AC that all you do is take off box on firewall and wah lah. You can do it.
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Old 11-08-2013, 03:06 PM   #3
RastaRobb
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Re: heater core replacement

XRCR is right on all counts, especially the standing on your head part. No problem. Removing the glove box will make it easier, but is not required. Women and their need for heat . . .
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Old 11-08-2013, 03:23 PM   #4
dieseldawg142
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Re: heater core replacement

if you take the glovebox off, it's easier to disconnect the heater cable.
undo the 3 bolts under your hood, your cables & duct work, 1 connector & a bracket on the pass. side.
lesson learned, hold onto heater core pipes when re-attaching the hoses, i actually broke one enough to leak once when shoving the hose back on.
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Old 11-09-2013, 05:53 PM   #5
Tucson38
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Re: heater core replacement

Heard a lot of horror stories on this but I didn't really have any problems replacing mine. Even if you have A/C it's not that big a deal, just one bolt under the hood that's a little difficult. It took about 4 hours or so but it's the first time I did it.
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Old 02-16-2015, 12:19 AM   #6
Hart_Rod
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Re: heater core replacement

Good info!
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Old 02-16-2015, 11:10 AM   #7
Bigstevex4
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Re: heater core replacement

No A/C is easy just took pic for a guy other day 3 studs in eng compartment 1 yellow wire is clamped 1 below it 1 towards driver side last 1 screw under dash on passanger side box. ya pull glove box cables i took ash tray out also unscrew defrost duct.
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