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Author Topic: NO HEAT  (Read 3802 times)

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Offline renegadmonk

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Re: NO HEAT
« Reply #15 on: April 22, 2012, 07:31:12 PM »
i do see the valve in the cooling n radiator section but it doesn't talk about it.
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Offline joe d

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Re: NO HEAT
« Reply #16 on: April 22, 2012, 07:33:23 PM »
it is a heater control valve, when you move the dash switch/lever it opens vacuum to the valve so you either have a bad valve or a bad rotary switch on the control head or a vacuum leak
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1979 ws6 trans am (current project)
2005 mercedes s55
2001 dodge durango
1980 SE trans am (new current project)
1971 Monte Carlo
the 5 p's "perfect planning prevents poor performance"

Offline renegadmonk

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Re: NO HEAT
« Reply #17 on: April 22, 2012, 07:46:07 PM »
or all the above...lol. Oh well guess i will have some trouble shooting to do. .....i tried to use a hand vacuum connected to the heater control valve to see if i could make it work .....not sure how much vacuum i was suppose to use but i couldnt get it to work......as for the line going into it.....if the lever on the control head is in the HOT position will there be constant vacuum going  through this line?
« Last Edit: April 22, 2012, 07:49:30 PM by renegadmonk »
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Offline joe d

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Re: NO HEAT
« Reply #18 on: April 22, 2012, 07:52:35 PM »
that is correct as RENOVATION said earlier this is a pretty simple fix when the control head is on hot the valve should have vacuum btw 18 inches of vac is good
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1979 ws6 trans am (current project)
2005 mercedes s55
2001 dodge durango
1980 SE trans am (new current project)
1971 Monte Carlo
the 5 p's "perfect planning prevents poor performance"

Offline renegadmonk

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Re: NO HEAT
« Reply #19 on: April 22, 2012, 07:57:11 PM »
ok thanks guys...will let you know how it goes...and i like your 5 p's i wish i would have following them...lol.
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Offline joe d

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Re: NO HEAT
« Reply #20 on: April 22, 2012, 07:58:21 PM »
LOL
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1979 ws6 trans am (current project)
2005 mercedes s55
2001 dodge durango
1980 SE trans am (new current project)
1971 Monte Carlo
the 5 p's "perfect planning prevents poor performance"

Offline ta6point6

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  • going bandit-REYNOLDS style
Re: NO HEAT
« Reply #21 on: April 23, 2012, 09:24:50 AM »
That is a after market heater control valve. Most Firebirds did not come with HCV so you really dont need it. They are nice though because in AC mode they keep hot coolant from flowing to the heater core also most Firebirds blower motors are always on. So it helps so you dont have hot air blowing on your feet from the heater core. I was thinking of adding one of these evetaully, any part number on the heater control valve
Do you really need a heater in NV ;D
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T hrashing  A ll
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Offline renegadmonk

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Re: NO HEAT
« Reply #22 on: April 25, 2012, 10:08:22 AM »
actually........Autozone has that valve i just had them put one one hold however......i believe i have a vacuum issue that acuates its. If what you say is correct it would make sense being i did not see it in the Service manual although i thought i did in another section but that would up being  something else. I would part with it only if i knew that my heat would not always be on.
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Offline renegadmonk

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Re: NO HEAT
« Reply #23 on: May 02, 2012, 06:57:05 PM »
will get back to this heat issue possibly this weekend had an engine  change in my other car to deal with.
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