Popping after accelerating to high RPM to a cruise

jeudi 27 novembre 2014

Couldn't think of a better title, anyway I recently bought a used 2005 Mazda Rx8 with ~78k miles. So far it's been great and I've had to do a few little DIY things. Today on my way home from work I noticed a popping sound sort of like something was either dragging or bouncing around in the exhaust. It seemed to only happen after I punch it and let off the gas so I don't go over the speed limit (I do this often and this is the first time I've noticed it) so I took a 30 minute detour (probably not the smartest thing) to try and hear the sound again and I can confirm that it only happens after I punch it (driving it easy doesn't cause the noise) So on my last run of trying to hear the sound (trying to pinpoint it) I heard an awful ripping sound, I almost thought it might have been the belt. but it sounded more exterior then interior (i'm not ruling out the possibility of it being inside the engine) So my reason for making this post is to see if anyone has had anything similar happen or if someone can point me in the right direction because I don't want to run it with the possibility of damaging something more then it already has.



I should note:



I have the 4spd Auto and have been playing around with the tiptronic feature recently, the other day I fishtailed on accident and now i'm in love with RWD and its' possibilities. (I should also note this is my first car) so It's safe to say I've been driving it less then ideally I've been getting around 10mpg, roughly. Anyway my reasoning for mentioning this is my tires, they're pretty bad, I am definitely getting new tires soon but the rear right tire is an oddball. So I am thinking my recent driving behaviour could have ruined the already worn tires. I don't know much about tires in general but aesthetically they look fine but i'm really hoping the ripping sound and potentially even the popping sound came from the same place, if not I could have 2 completely separate problems on my hands. Any advice would be great, thanks.




P.S the car drives good, accelerates good, and generally sounds good when revving it's just the popping that happens after, now that I think of it, it could be misfiring? Thanks again.





TL;DR Popping sound after accelerating to a high rpm and completely taking foot off the gas to slow down to a more reasonable speed. Ripping occurred on last run thus scaring me enough to finally make an account on here and post this thread.




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