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Heater control valve
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I have a 1985 Regal 31. The vacuum lines have all (4) broken off from the heater control valve. It’s a motor craft part #YH-380. I have not been able to find anyplace or anyone that can tell me what vacuum lines go to which port on the control valve. There appear to be 7 ports on the valve and there are only 4 lines in the coach. Need to find out what each port controls and do I need to block off unused ports. If I could find out which port the engine vacuum goes to I could probably ,by trial and error ,figure where the other lines go. Need help..
Posts: 5 | Location: Volcano, Ca | Member Since: 10-14-2017Reply With QuoteReport This Post
Supporting Member of 5/19
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Sorry I cannot help you with the placement of the hoses. It does seem strange, the Regal (Chevrolet) chassis would have a Motor craft (Ford) control valve. The control valve in my Regency is a Chrysler product.
When Steve VW sees this post he might be able to help. MWrench may be able to get you in the right direction also.
Posts: 3748 | Location: Northeast , Ohio | Member Since: 07-29-2012Reply With QuoteReport This Post
Picture of Doug Smiley
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Originally posted by Doug Smiley:
what vacuum lines go to

would this help (or confuse) you April 1 ??


The 82 MCC {by Barth}
is not an rv--
it is a Motor Coach!!

Posts: 2544 | Location: Nova Scotia | Member Since: 12-08-2006Reply With QuoteReport This Post
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