Question about 2008 Mazda Mazda3 Hatchback

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I can feel gas pedal vibration when 3000+rpm - 2008 Mazda Mazda3 Hatchback

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  • bennychenxl Nov 16, 2010

    even on the stand-still, when revs about 3000+rpm. i can feel the engine vibration via pedal and on the floor too. but when revs about 4000+rpm, it;s running fine, not rough feel.

    could this be normal? for MZR engine?
    my unit 1.6L N/A year 2008. not drive-by-wire

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  • Master
  • 3,917 Answers

Hi,


Thank you for contacting Fixya.com.


Couple of things to check. First check if you feel the vibration in any other pedals. Normally the gas pedal is mounted to a bracket under the dash along with the others and sometimes the vibration can be transmitted through the linkage. Next check the metal guard on the front of the cat. Sometimes its found to be broken away at the weld and seems to buzz at about 3000 rpm. You need to get it welded. What about the pitch stop? Is it still in good condition? I would think that if that was mounted incorrectly, or not at all for that matter, then will you definitely get some excess vibrations. Lastly does the car give this vibration with the Trans in neutral and the engine at 3000 rpm? If it will vibrate at 3000rmp at idle - it has to be the belts.
Please get back to us if you have any further query.

Have a nice day.

Posted on Nov 16, 2010

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  • Mazda Master
  • 19,396 Answers

Hi.

To a some extent the vibration is normal in Mazda 3 (use Google to get an idea of number of complaints). If the vibration is speed related, then you can soften the problem a bit by doing tire balancing and alignment. If you can also feel the vibration in driving wheel, then the front drive train must be checked. If the floor is also vibrating, then have a look at the rear drive train.
If the vibration is felt only and exclusively in the accelerator pedal, and does not depend on speed , but exclusively on revolutioning of the engine (unusual), then the problem is the accelerator hydraulic system, eventually the ABS system must also be checked. In that case go to the dealer and ask them to have a look.

Regards.

Ginko.

Posted on Nov 15, 2010

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Posted on Jan 02, 2017

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