CX3 revs when applying brakes - Mazda CX3 Forum
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post #1 of 4 Old 06-12-2017, 10:20 PM Thread Starter
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CX3 revs when applying brakes

I own a brand new Mazda CX3 Max January 2017 build. At times, when I apply the brakes, the car revs quite high. The other day, this happened when I stopped at lights and the car lurched forward. I applied the brake very hard and when I put it in nuetral, it revved quite high. Has anyone else experienced this?
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post #2 of 4 Old 06-12-2017, 10:49 PM
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Originally Posted by Andr0s! View Post
I own a brand new Mazda CX3 Max January 2017 build. At times, when I apply the brakes, the car revs quite high. The other day, this happened when I stopped at lights and the car lurched forward. I applied the brake very hard and when I put it in nuetral, it revved quite high. Has anyone else experienced this?
Take it back to the dealer, post haste!

P.S. Wife's HR-V had the same problem after I vacuumed it out for her ... mighty man that I am, I solved "her problem" by reinstalling the all-weather floor mats under the pedals ... vs. on top of them :--(

2017 CX-3 GT, AWD, i-ActiveSense, Ceramic Metallic, Black ... His: Zoom, Zoom!
2016 HR-V EX-L, AWD, Milano Red, Black ... Hers: Putt, Putt.
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post #3 of 4 Old 06-13-2017, 04:41 PM
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Yah, check your pedals, check your mats, wear narrower shoes... If none of those turn anything up, take it to the dealer and demonstrate the problem for them.

Beyond those three basic, 5-minute checks don't dither about trying to self-diagnose. You should still be under warranty so let them deal with it. If it's an intermittent issue, expect them to scratch their heads a few times. If you figure out how to induce the problem reliably then ask to have a tech ride along with you.


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2017 MX-5 RF Launch Edition
2005 RX-8 Sport Sunlight Silver under Cone Rash (because racecar!) -- SOLD!

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post #4 of 4 Old 06-14-2017, 12:30 AM
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It will speed up if you pump the brake with the engine idling which is due to the change in manifold depression but i wouldn't call it revving. Check the mats as shown above but if not, I would be looking for a vacuum leak near the inlet manifold.

Currently CX5 SportNav 2.2 diesel automatic and AWD.
Formerly CX3 SportNav 1.5 diesel automatic and AWD.

All advice is given in good spirit and taken entirely at the readers own risk. WORK SAFELY. ©2018 anchorman

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