1974 Compressor isues
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500, 472, 425, 368 Discussion, 1974 Compressor isues in Cadillac Engine Technical Discussion; Hi, guys im new to the forum- wuts up? I have a 74 coupe deville, i recently rebuilt the top ...
  1. #1
    74cherrydeville is offline Cadillac Owners Member
    Automobile(s): 1974 Cadillac Coupe DeVille
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    1974 Compressor isues

    Hi, guys im new to the forum- wuts up? I have a 74 coupe deville, i recently rebuilt the top half of the engine, and removed the compresor. i put it back and now the clutch doesn't click....when i removed it i hosed it down. im wondering if the water fried it? Im also not sure of the wires to hook back up even though there is only abotu 4 wires to hook up, one is a harness, 2 go to the compressor prongs, and one goes 2 what i believe is the ground...any assistancde would help beforei go buy a new compressor....

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    deVille33 is offline Cadillac Owners Connoisseur
    Automobile(s): 1977 Coupe (blue), 1977 Coupe (yellow), 1977 Coupe (green)
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    Re: 1974 Compressor isues

    When you moved your compressor, you may have lost your charge, if one of the line connectors leaked. You may get a more knowlegable reponse over on the RWD postings.

  4. #3
    Brother_B's Avatar
    Brother_B is offline Cadillac Owners Fanatic
    Automobile(s): 1969 Coupe DeVille, 1972 Sedan DeVille
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    Re: 1974 Compressor isues

    Did you try to just connect a jumper wire from +battery to the compressor? That usually works for me. On my '72, there is thermal fuse (about $2.00) that blows when the charge is low. It is mounted on passenger side near firewall, I think its on the evaporator case. And here is a picture of it
    http://shop.advanceautoparts.com/web...S_562146391___
    To see if it is blown, disconnect the harness and short a jumper wire between terminals B and C on the harness. If the compressor kicks in, then the fuse is blown.

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