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Old 09-16-2013, 02:26 AM   #1
JMac11
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Heater Core Shut Off

Anyone running the vacuum operated valve to shut the water off to the heater core? Plan on hooking mine back up, just curious how it has been working out.....
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Old 09-16-2013, 08:37 AM   #2
Clyde65
1965 Chevy C10, 2005 4.8L/4l60
 
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Re: Heater Core Shut Off

I had an electric shut off and it wouldnt seal well enough to run my AC and have it cool much, so I put two manual valves, only touch them in spring and fall.
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Old 09-16-2013, 10:50 AM   #3
ls1nova71
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Re: Heater Core Shut Off

My truck has factory A/C and the vacuum shut off works with no problems.
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