Question about 2001 Mazda 626

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My mazda 626 rattles when in drive and the ac is on

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  • Anonymous Oct 03, 2008

    i think this person means the car vibrates.....the rattle is coming from the vibration. why is it vibrating

  • Anonymous Oct 03, 2008

    yeh same problem.....the rpm go up and down causing the vibration why why why ? if im in park its not to bad but when in drive and the air con on the rpms are up and down

  • mattmangum Oct 06, 2008

    I have a similar problem the car vibrates almost violently when stopped and the ac is on but in park it seems to calm down a bit. I have tried tweaking the Idle control valve but it only worked for a little while.

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2 Answers

In this situation, I found out that the top latch of the front hood rattled against the bottom metal hood latch at low idle. A thin rubber strip with adhesive on one side, cut to just fit over the bottom metal loop where the top latch rests on does for temporary, but quiet fix. Just make sure the the rubber strip allows the latch to lock properly. Push down firmly on the front hood and try prying the hood open with just your fingers to check. Again, this is temporary as the adhesive may get dirty and fall off during multiple maintenance access to your engine.

Posted on Oct 15, 2008

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It may be the catalytic converter or exhaust pipe heat shield(s), with the park brake set and ac on at ilde push on the sheet metal shields with a broom stick and see if the noise stops. It works best with someone in the car to listen for noise changes.

Posted on Jul 25, 2008

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