| Re: [GMCnet] Kerry Pinkerton NAPA Vacuum Swithch [message #269841 is a reply to message #269826] |
Sat, 17 January 2015 07:32   |
kincaid76royale
Messages: 71
Registered: February 2005
Karma:
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Thanks Kerry, I'll let you know what happens from here.
Thanks again,
Jack
----- Original Message -----
From: "Kerry Pinkerton"
To: gmclist@temp.gmcnet.org
Sent: Friday, January 16, 2015 7:05:01 PM
Subject: Re: [GMCnet] Kerry Pinkerton NAPA Vacuum Swithch
Jack, it is the vacuum switch on the back of the heater controls. It opens and closes all the air doors on the HVAC.
NAPA A/C vacuum switch 207709 About $29 irrc. You can get the same thing cheaper off ebay but Napa had it in their wearhouse and I got it the next
am. My old one just wouldn't work right.
The new switch fixed most my problems. Air doors operate quick and positive. I have a whistle while one particular door cycles but that's not the
valves problem other than the pot is getting more vacuum. I have a dead recirculate door pot but for now, in the winter, I don't want much outside
air anyway so I've blocked it off.
Here is a link to the thread where it was discussed:
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&th=32866&prevloaded=1&rid=2555&start=0
--
Kerry Pinkerton
North Alabama, near Huntsville,
77 Eleganza II, "The Lady", 403CI, Manny Brakes, 1 ton, tranny also a 76 Eleganza to be re-bodied as an Art Deco car hauler
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