The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- LSx Swaps (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=206)

- - Heater Core Shut Off (https://67-72chevytrucks.com/vboard/showthread.php?t=596929)

JMac11

09-16-2013 02:26 AM

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.....

Clyde65

09-16-2013 08:37 AM

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.

ls1nova71

09-16-2013 10:50 AM

Re: Heater Core Shut Off

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

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