Mazda Repair Questions? Ask Mechanics for Answers ASAP
Welcome, I'm Chris (aka Moose) I'm an independent contractor here at Just Answer.
I want to say its a possible belt slip from a weak tensioner, but I do not see how its speed related. Does this occur during a gear change? Is it something you can also feel?
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A recording would help. Since it occurs in neutral idling and gaining speed. That rules out the engine and transmission. If you barely drag the brakes coasting downhill can you feel it in the pedal, possibly from an ABS weird activation?
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Is it the noise at 25 seconds to blame?
I can hear it well, though I can say I have never heard that noise before. I really need my ears in the vehicle and or a listening device to pinpoint where on the vehicle it is originating from. Its not the brakes, steering, suspension, engine, or transmission best I can tell. I feel it may be a EVAP valve or EGR valve opening for the first time on this startup. Anyway you can get the vehicle on a rack or stands to see if you can duplicate the noise.
They sure will be.
First I just want to see if the noise will occur doing this. If so open the hood and have a helper listen to see if they an pinpoint the origin.
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