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Thread: R-12 Recharge

  1. #16
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: R-12 Recharge

    Hehe, hind sight is always 20/20. I did learn a lesson though and stocked up on R134a while it was cheaper (er).

    Considering it hasn't been touched it in at least 10 years I would that's probably all it needs and it doesn't owe you anything. The problem won't be so much finding a shop that CAN do it as much as finding one WITH R12.


  2. #17
    STS_Seville_Hunter is offline Cadillac Owners Enthusiast
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    I had no problem recharging a r12 system, two shops where I live do it, cost was $200. Call around.

  3. #18
    aeronca36606 is offline Cadillac Owners Enthusiast
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    Re: R-12 Recharge

    If the compressor has been tripped off by the BCM then you probably have almost no Freon left. Make sure that you do a comprehensive leak check before you waist expensive R-12. Once all leaks are addressed then an R-12 charge will be relatively in expensive as it will last for years.

  4. #19
    drewsdeville is offline Cadillac Owners Master
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    Re: R-12 Recharge

    I've never heard of the mysterious escaping freon theory. I find that hard to believe, considering how many homes out there have perfectly working refrigerators that are well over a decade old - many times half century old freezers in the basement holding last season's game meat. That said, dad's 215k mile '89 still holds the factory R-12 charge, and I've never had another system leak down over time after proper repair... I concur with the above post- if it's empty, there's a leak that needs repair or it will do it again. Find the leak, then recharge.

  5. #20
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    13ir14314 is offline Cadillac Owners Fanatic
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    Quote Originally Posted by drewsdeville View Post
    I've never heard of the mysterious escaping freon theory. I find that hard to believe, considering how many homes out there have perfectly working refrigerators that are well over a decade old - many times half century old freezers in the basement holding last season's game meat. That said, dad's 215k mile '89 still holds the factory R-12 charge, and I've never had another system leak down over time after proper repair... I concur with the above post- if it's empty, there's a leak that needs repair or it will do it again. Find the leak, then recharge.
    If the A/C in a car was made the same way as home appliances there would be far fewer leaks. The home units are sealed with O- rings and bolts they get crimped then welded or soldered making it almost impossible for leaks.

  6. #21
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Automotive systems do use O rings, crimps, and welded/blazed parts. The components in an automotive A/C system have it MUCH tougher than a home system, in terms of movement/vibration, and heat.

  7. #22
    Ranger's Avatar
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    Re: R-12 Recharge



    I do know a guy that once used an old piston type car compressor to run a home A/C system.

  8. #23
    drewsdeville is offline Cadillac Owners Master
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    Re: R-12 Recharge

    Quote Originally Posted by MoistCabbage View Post
    Automotive systems do use O rings, crimps, and welded/blazed parts. The components in an automotive A/C system have it MUCH tougher than a home system, in terms of movement/vibration, and heat.
    They sure do, which is why failure rate is much higher. However, the point is, auto or not, a leak is abnormal - if it wasn't, aftermarket component warranties would be pointless and manufacturers would exclude AC from their warranties. A properly working system will never need a charge. Some people will live with a small leak, but it's never normal...

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