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HVAC Doors [message #362572]

Sun, 28 February 2021 15:57

Greg C.

Messages: 224
Registered: October 2019
Location: Knoxville, TN

Karma:

Senior Member

If I remove the radiator overflow tank and the windshield washer fluid tank, can I take the front off the HVAC box and access the flapper doors?

None of mine work, probably due to the vacuum leak at the control, and it blows out the dash vents in Heat, Vent, and AC positions.

I've read that the system defaults to defrost, but mine does not, so it makes me think the door is stuck.

If I can get the doors to work, I'm thinking about trashing the original HVAC controls and doing this:

https://sites.google.com/site/darbyselky/home/electronic-hvac-controls?authuser=0

Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags

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[Message index]

		HVAC Doors By: Greg C. on Sun, 28 February 2021 15:57
		Re: HVAC Doors By: 94nubble on Sun, 28 February 2021 16:51
		Re: HVAC Doors By: 94nubble on Mon, 01 March 2021 11:25
		Re: [GMCnet] HVAC Doors By: Ken Henderson on Mon, 01 March 2021 16:15
		Re: [GMCnet] HVAC Doors By: 94nubble on Mon, 01 March 2021 17:19
		Re: [GMCnet] HVAC Doors By: Ken Henderson on Mon, 01 March 2021 18:03
		Re: [GMCnet] HVAC Doors By: johnd01 on Mon, 01 March 2021 18:16
		Re: [GMCnet] HVAC Doors By: Ken Henderson on Tue, 02 March 2021 17:40
		Re: HVAC Doors By: Melbo on Sun, 28 February 2021 16:54
		Re: [GMCnet] HVAC Doors By: Ken Henderson on Sun, 28 February 2021 16:31

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