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July 7th, 2009, 09:24 PM
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#1 (permalink) |
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Registered User
Join Date: Mar 2007
Posts: 17
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What is a 'Hold in Relay'?
Does anyone have any experience with this relay used on a 69 442. It is the relay located on the right (pass) fender and is wired in with the Compressor feed. It is called a 'hold in relay' and has two leads coming to it and one coming out to the compressor. Three pronged relay. This was the one relay missing from the car. I finally found a listing for an AC relay with the correct configuration, but I would like to know what it does, before I buy it.
Ross |
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July 8th, 2009, 06:23 AM
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#2 (permalink) |
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Moderator
Join Date: Feb 2008
Location: Plano, TX
Posts: 1,916
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I have heard some years of cars wired so the AC compressor is held engaged a few seconds after the engine was shut off, to reduce the chance of run-on or dieseling.
Not sure if yours had this 'feature' or not, but a possibility... The 72 had no relay in the compressor circuit.
__________________
-Rob Young  1972 Cutlass Supreme Convertible (442 clone) -"Lady" (My mistress...) http://www.flickr.com/photos/robsalbum/sets/ 1986 Cutlass Supreme Coupe - "Pristine" 1978 Ford (Old Faithful) a.k.a. "the Tramp" 1997 Cadillac STS (for sale - too many cars!) 1999 Harley Davidson Sportster - "the Freedom Machine" |
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