Headlights dim when compressor turns on
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This is a discussion on Headlights dim when compressor turns on within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hi All, When my A/C compressor turns on and the radiator fans spin up, my headlights dim, as if the ...

  1. #1
    Registered User element533's Avatar
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    Dec 2002
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    Sacramento, CA
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    56

    Question Headlights dim when compressor turns on

    Hi All,

    When my A/C compressor turns on and the radiator fans spin up, my headlights dim, as if the fans are drawing too much current. Is this normal? Could it be a short?

    Thanks...
    Speedometer? Is that the thing next to the tach?

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  3. #2
    Registered User spacemanspiff's Avatar
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    Apr 2003
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    Austin it is
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    Yes it's normal for the WRX.
    A lot of power is good, more is better, and too much is perfect. I mean, if less is more, think how much more more is...

  4. #3
    Registered User
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    Apr 2003
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    CT
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    584
    More load is put on the alternator, and electrical system, thus the lights dim. This is considered normal for all cars, some more than others.
    '12 WRB Sedan

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