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Chevy Astro
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Toyota RAV4

Why would the check engine light come on only when you run the air conditioner?


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Wiki User
2006-03-02 03:40:23
2006-03-02 03:40:23

You couldpossibly have a problem with engine vacuum system like a leak

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That is what the check engine light is for. It informs you of a failure.

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A flashing check engine light is an indication of a severe engine misfire.

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No, low gas cannot cause a Check Engine light to turn on. There would have to be a problem within the engine or the engine wiring for that light to come on.

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Probably because you need to check the engine.

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Yes, it is possible as you may have a miss. That miss would turn on the check engine light.


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