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  1. 2014-2018 Mazda 3 Skyactiv Discussion
    Hi everybody, I have a 2015 Mazda 3, 2.0L auto and Mexico built. The car is fantastic and I maintain it well, had it for about 15k miles now. I think that since I got it it makes this almost clapping sound when in neutral between 1500 and 2000 rpm, not sure why. The sound may happen while on...
  2. 2014-2018 Mazda 3 Skyactiv Discussion
    Hey folks, I've got an issue with my engine's sound. When I give the gas pedal a quick tap, there's this air leakage-like noise. Is this related to Mazda's SkyActiv technology, or could it be an engine problem? No noticeable power loss, the car accelerates fine, no fuel loss, averaging around...
  3. 2019+ Mazda 3 Discussion
    I was installing a dashcam in the car and noticed this annoying electric whine coming from the engine bay. See the video linked in my second post below. (Forum spam guard prevents linking for first time posters.) Is this something others have experienced? I can't find any other reports w/ a...
  4. 2014-2018 Mazda 3 Skyactiv Discussion
    I am looking to buying a used 2015 Mazda 3i touring with 123'000 miles. I've noticed that on one of the pictures that the dealer posted the check engine light seems to be on (see the screenshot). The car is quite far away, so I want to do as much due diligence as possible before actually seeing...
  5. 2019+ Mazda 3 Discussion
    When the i-stop feature in my 2019 Mazda 3 Astina G25 ends and restarts the engine, the engine restart is very rough and 'jolty', like a kick up the butt from the car that you feel through the seat. I can't remember if it was like that when it was brand new, but it's been like that for the last...
  6. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    (2014 Mazda3 I Grand Touring) Car failed to start after check engine light came on (P013a). Briefly runs if throttle is pumped, however wildly varies in idle; surging and low RPM with rough popping/backfiring then dies. Code suggested oxygen sensors. Both changed with no change. Changed spark...
  7. 2010-2013 Mazda 3 Engine and Performance
    Hi all, I am looking forward to change my engine air filter (OEM: P53N133A0) for BALDWIN - PA10422. This is the first time I will be using this filter but it is the only one available in my country at the moment, my only problem is that when I checked the specs it was about 8mm shorter in height...
  8. 2010-2013 Mazda 3 Engine and Performance
    I hope this is the right thread here, let me know if it’s not. I just bought an automatic transmission 2.5L Mz3. I've noticed that when the car is idle (at a stop light or whatever), its a pretty rough idle, then a barely detectable "pulse" from the engine. Its about once every second or so...
  9. 2019+ Mazda 3 Discussion
    I own a 2022 Mazda3 M/T. I was driving home over the summer in cruise control going about 70 in 6th gear when the rpms began fluttering. The car lost all acceleration and I rolled off the highway. With only 4000 miles, the dealership told me the clutch was completely disintegrated and parts of...
  10. 2014-2018 Mazda 3 Skyactiv Discussion
    This is a PSA for those who have Mazdas with Skyactiv/direct-injection engines who are not already aware of this: If you regularly drive in slow-moving traffic, city/stop & go traffic, or sit with you vehicle idling for even a few hours per month, then you especially need to pay attention to...
  11. 2010-2013 Mazda 3 Engine and Performance
    I have a 2012 Mazda 3i manual transmission, 2.0L, VIN F. Unfortunately I need to replace the engine due to what is believed to be worn piston rings. In looking for a replacement, should I only consider the same year and VIN F? Or will the computer respond to a 2011 or 2010? I assume I need to...
  12. 2019+ Mazda 3 Engine and Performance
    Here's me yet again with another (possibly) stupid question. So, just the other day I started the car and immediately turned it off because I had forgotten something in my house. I know that some oil film usually remains on the engine bearings after the engine is shut off but I can't help...
  13. 2019+ Mazda 3 Discussion
    So yesterday I decided to go for a ride and, without thinking, gave my car full throttle while overtaking just 8 minutes (5 miles) down the road, with ambient temperature being around 50°F. What worries me is that oil wasn't fully up to temperature and that I might have pushed the engine too...
  14. 2019+ Mazda 3 Engine and Performance
    So a week ago I gave my Mazda 3 a full throttle (WOT) to 3000rpm and now I can't shake the feeling that I might have caused some undetectable damage that'll eventually show up down the road. I have already made a similar post so I apologise, but I wanted to provide extra info for our resident...
  15. 2019+ Mazda 3 Discussion
    So I've just about passed the 600 mile break-in mark and, stupidly, gave my engine full throttle in first gear. I didn't exceed 3000rpm, but I did push the accelerator all the way down after depressing the clutch, which caused me to worry about engine health. Is it possible that opening the taps...
  16. 2004-2009 Mazda3 Discussion
    Hi. I've noticed my 1.6 liter '06's engine shake and rattle more than usual at about 1400 and 2500 RPM. Cold weather will make the shakes more pronounced. The shakes might be less if I turn the engine off for a bit (like popping into a gas station to buy a coffee and come back) and turn it back...
  17. 2010-2013 Mazda 3 Engine and Performance
    While replacing my spark plugs, I saw there is a hole between the 2nd and 3rd spark plugs and it probably takes a screw that is missing. (see pic below) The pic is taken after removing the second coil. But that hole in the metal is not the hole for the second spark plug. It is between the 2nd...
  18. 2004-2009 Mazda3 Discussion
    So looking like having to do an engine swap after my sp23 went kaput at 220,000km, 140k ish miles. Have no compression at all in cylinder 2 and very little in cylinder 1 there was about 2L of coolant/water that came out the drain plug with 2.5Lish oil. Oil on base of plug one, plugs are old but...
  19. 2014-2018 Mazda 3 Skyactiv Discussion
    Does anyone know the name of this cloth or sponge type that comes with the engine cover of the 2015 Mazda 3? I want to replace it because it leaves a lot of lint or white dust, but I do not know what it is haha looks like cotton; Any help it's grateful.
  20. 2010-2013 Mazda 3 Engine and Performance
    Anyone experience this? Specifically with a 2011 3 GT Hatchback (2.5L) Car has 105k miles Basically, if the car is cold, it starts up fine but if I drive it a short distance, usually under a mile, turn it off for like 5-10 mins when I run into the store, it will sometimes struggle to start...
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