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  1. #1

    Default Part ID help please

    What is the relay that is hanging over the A/C compressor in this picture?

    Lee
    71 Skylark Convertible 350/350
    79 Corvette 5 spd.

  2. #2
    Join Date
    Nov 2010
    Location
    Simi Valley, CA
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    4,389

    Default Re: Part ID help please

    If it has three prongs (can't tell from the tape) it is a thermal limiter fuse. Do you have a problem with the A/C? That fuse is usually clipped to the fender just forward of the inner wheelhouse.

    ETA- I see it has three wires, so yes, it is the thermal limiter fuse.

  3. #3
    Join Date
    Feb 2002
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    LI,NY
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    19,976

    Default Re: Part ID help please

    Quote Originally Posted by SteeveeDee View Post
    If it has three prongs (can't tell from the tape) it is a thermal limiter fuse. Do you have a problem with the A/C? That fuse is usually clipped to the fender just forward of the inner wheelhouse.

    ETA- I see it has three wires, so yes, it is the thermal limiter fuse.
    They used to hang on a peghook in the aisle of the auto part store next to the 99 cent cans of Freon
    Jason Cook
    BPG #1675
    "Expert in obsolete technology"

    1968 Riviera GS- some assembly required
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    1972 GS-350
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    Deo duce, ferro comitante

  4. #4

    Default Re: Part ID help please

    What does it do?
    Lee
    71 Skylark Convertible 350/350
    79 Corvette 5 spd.

  5. #5
    Join Date
    Nov 2010
    Location
    Simi Valley, CA
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    4,389

    Default Re: Part ID help please

    If you get low enough on refrigerant, that fuse blows to protect the compressor. If your compressor is not working, it is a possible cause.

  6. #6
    Join Date
    Nov 2010
    Location
    Simi Valley, CA
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    Default Re: Part ID help please

    Quote Originally Posted by buick64203 View Post
    They used to hang on a peghook in the aisle of the auto part store next to the 99 cent cans of Freon
    Back by the "dog turds". I saw that those are still available, yesterday at NAPA. And I can recall 88 cans of R-12.

  7. #7

    Default Re: Part ID help please

    I don't think my car has a thermal limiter fuse. My compressor works fine, it's my blower motor that is weird. It doesn't work (blow) at all on low speed and at max speed it blows great but the A/C compressor won't engage at that fan speed, the A/C works fine on medium and high but not max.
    Lee
    71 Skylark Convertible 350/350
    79 Corvette 5 spd.

  8. #8
    Join Date
    Nov 2010
    Location
    Simi Valley, CA
    Posts
    4,389

    Default Re: Part ID help please

    You'll have to trace out the electrical paths. It could be the fan switch or the relay or both (unlikely).

 

 

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