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Topic: Heater core replacement

in Forum: C4 Cooling and Heating Systems


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Heater core replacement (1/3)
 1/22/11 4:15pm
Lenny_WV
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Princeton, WV - USA

Vette(s):
A 1986 coupe currently with 60,000 miles, purchased in August of 2010. G44 - Rear axle 3.07 ratio, Z51 - Performance handling package, FE7 - High performance suspension, FG3 - Preloaded gas shock absorbers, to name a few.


Joined: 9/29/2010
Posts: 17

Just wondering if anyone has an idea of how hard it is to replace the heater core in my '86.  I think it's on its last legs so its that time.  Is this a do it yourself project or something for a shop?  Any thoughts would be appreciated.

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Heater core replacement (2/3)
 1/23/11 9:55am
eddie20890
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lanoka harbor, NJ - USA

Vette(s):
1990 L-98 white/ red/black leather interior targa top auto 1975 L48 blue/black leather interior t tops auto


Joined: 3/22/2009
Posts: 1363

https://www.c4vetteregistry.com/forum/forum_posts.asp?TID=64044&title=is-changing-the-heater-core-on-a-c4-really-that-bad
check this thread out lenny. goes into a lot of detail about changing the core. also look through all the other posts in the heating and cooling forum as i be lieve there are more posts about it. good luck.

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the dynamic duo


c3vr life member #97
Heater core replacement (3/3)
 1/31/11 8:49pm
C4Shane
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Charlotte, NC - USA

Vette(s):
-1993 LT-1, Coupe, 6speed, white/black -1986 L98, Coupe, 4+3, Black - SCCA TT Racer -1979 L48 Coupe, Auto, Red/doeskin


Joined: 5/15/2010
Posts: 26

I did my 86 and it was a bit tough. I almost thought about pulling out the windshield to improve access! But my real problem was that the replacements I could find were not correct, so I suspect they changed the type/style at some point. Fortunately, I was able to read off the part number and cross reference it to a correct style at RockAuto.com. They shipped it to me and it fit fine.
 
Good luck


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There is no problem a little horsepower can't fix!

C4s: 1993 LT-1 coupe, 6-Speed, White w/black 1986 L-98 Coupe, 4+3 Trans, Satin Black w/red-black interior - SCCA Time Trial racecar.
C3: 1979 L-48 couple, auto, Red w/doeskin interior.
 
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