85 Fleetwood Brougham Climate Control issue - Page 2
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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, 85 Fleetwood Brougham Climate Control issue in Past Cadillac Vehicle Discussion; So I've got an update, It started acting up again today so I popped the hood and gave a tap ...
  1. #16
    j2rossit is offline Cadillac Owners Enthusiast
    Automobile(s): 85 FW Brougham, 68 Buick Wildcat Convertible 455 4bbl
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    Re: 85 Fleetwood Brougham Climate Control issue

    So I've got an update, It started acting up again today so I popped the hood and gave a tap to the cycle switch. The instant I hit the switch the compressor kicked in and the A/C worked fine after that.

    So my question is: how to replace the switch? There is a charged tube that goes down into the evaporator. Is there a bolt on the other end? can you just pull it out? I can't find a replacement on Rockauto so does anyone know where get a new switch?

  2. #17
    mhamilton is offline Cadillac Owners Connoisseur
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    Re: 85 Fleetwood Brougham Climate Control issue

    Quote Originally Posted by j2rossit View Post
    So I've got an update, It started acting up again today so I popped the hood and gave a tap to the cycle switch. The instant I hit the switch the compressor kicked in and the A/C worked fine after that.

    So my question is: how to replace the switch? There is a charged tube that goes down into the evaporator. Is there a bolt on the other end? can you just pull it out? I can't find a replacement on Rockauto so does anyone know where get a new switch?
    On an '85? The cycling switch should be screwed onto a port on the accumulator. There's a schrader valve under it, so just unscrew it and then put on the new one. 2 minute job.

  3. #18
    j2rossit is offline Cadillac Owners Enthusiast
    Automobile(s): 85 FW Brougham, 68 Buick Wildcat Convertible 455 4bbl
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    Re: 85 Fleetwood Brougham Climate Control issue

    On the 85 the switch is mounted on the air plenum beside the blower motor and comes with an integrated tube charged with freon. The tube runs along the inlet pipe to the evaporator to measure the temperature of the freon entering the evaporator. The tube cannot be separated from the switch but I've found out that it isn't held on to the evaporator inlet pipe with much other than some goop and is really easy to remove and replace.

  4. #19
    Robin Banx's Avatar
    Robin Banx is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Fleetwood Brougham
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    Re: 85 Fleetwood Brougham Climate Control issue

    Mine is acting up as well. Started intermittently a couple of years ago. I didn't know what the problem was until your post. When the A/C compressor quit last week during our annual heat wave, I left the car running, popped the hood and tapped the cycle switch and presto, cold air again and no further trouble. Lordco Auto parts, our local Delco dealer doesn't stock the Delco switch any more but they do have a variety of replacements available. I have asked for any one of them NOT made in China.

    Cheers.........R.
    j2rossit likes this.

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