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

leaky heater control valve

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Old May 13, 2013 | 08:54 PM
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chillin-n-killen's Avatar
chillin-n-killen
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Default leaky heater control valve

my 1986 coupe has a pretty good leak at the heater control valve.was wondering if there is a rebuild kit available and if so where do i buy one. or should injust replace the whole thing { $170.00}. also is it pretty ez to do a rebuild ?? tnx in advance..............jerry
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Old May 13, 2013 | 09:38 PM
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From: Clifton Park, NY ............Clearwater, FL ... 85 Original Owner
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Originally Posted by chillin-n-killen
my 1986 coupe has a pretty good leak at the heater control valve.was wondering if there is a rebuild kit available and if so where do i buy one. or should injust replace the whole thing { $170.00}. also is it pretty ez to do a rebuild ?? tnx in advance..............jerry
are you sure it's the valve and not the vacuum lines in back of it? Mice love to chew on them
Available on ebay for a lot less than $170
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Old May 13, 2013 | 09:59 PM
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the water control valve pipe assy under the hood?

if so, new ones leak. Its NOT a 'got to have' item for the heat & a/c to work right. It just stops water from flowing to the core when the heater is NOT being used.
After 2 or 3, I took mine out and built a replacement system to accept the 1/4" line from the intake, and the 2 heater lines to and from the core. Brass fittings, a cpl barbed fittings...done. No mo leakin.
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Old May 13, 2013 | 10:37 PM
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Did every model year C4 have one ? Have not noticed one on my 91.
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Old May 13, 2013 | 10:58 PM
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Originally Posted by BGZQ8
Did every model year C4 have one ? Have not noticed one on my 91.
Only used on early years

Originally Posted by chillin-n-killen
was wondering if there is a rebuild kit available and if so where do i buy one.
http://forums.corvetteforum.com/c4-t...-corvette.html
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Old May 14, 2013 | 12:43 PM
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Here is the knowledge you seek:

http://forums.corvetteforum.com/c4-t...-corvette.html

Go forth and repair....
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