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I have a 2003 Chevy Cavalier. when the ac is turned on the air compressor kicks on and off a loud clicking noise form engine not dash causing rpms to spike.

What could be possible issues and how can i go about fixing it?

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The short cycling low freon or bad clutch but usually low freon ---clicking is a/c turning on which causes a load and adds more rpms then off rpms drop

Posted on May 02, 2017

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  • The Master
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That's normal - if it it just spike: more power demand from the engine

Posted on May 02, 2017

Testimonial: "It spikes constantly not just once. while the ac is on it blows hot air and the rpms constantly go up and down"

  • Vladimir Frolov May 02, 2017

    then you have to check a Freon and AC system for a leakage under pressure.

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