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pcv

  1. PCV valve replacement

    2014-2018 Mazda 3 Skyactiv Discussion
    When do you all suggest changing the valve? The owner manual says nothing. I only have 4000 miles on my 2018 Mazda 3 sport, but I like to write my own maintenance schedule and refer to it in the future as my time becomes more limited. Have any of you with older engines had issues? Thanks
  2. PCV and Crankcase breather hose?

    2010-2013 Mazda 3 Engine and Performance
    Is there a difference between the two? if it is, where is the pcv hose found?
  3. PCV Vavle/Intake Manifold R&R?

    2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hi everyone! New Mazda 3 owner here and loving it so far! Well, new to me anyways. I recently bought a 2014 i Touring 2.0 with a 6 speed and have done some preventative maintenance to know that everything is in working order. One of the things I found out is that this has a PCV valve that is...
  4. Burning oil - bad PCV Valve?

    2014-2018 Mazda 3 Skyactiv Engine and Performance
    My '14 Mazda3 has about 24K miles and it has a rough idle. No CEL. Took it to the dealer and they found that it was burning oil.... The dealer wants to a make a case to Mazda to do the warranty repair but I won't hear back until Monday. The only problem is I never had the dealer change my oil. I...
  5. PCV Valve 2011

    2010-2013 Mazda 3 & Skyactiv Discussion
    anybody replace the PCV valve on a 2011 Mazda 3, 2.5? Having trouble locating it. Can find anything online to help. It is probably looking dead at me. Let me go try and locate again Thanks
  6. PCV Oil catch can

    2014-2018 Mazda 3 Skyactiv Engine and Performance
    Being direct injection engines, SkyActiv's are inherently at risk to carbon deposits on the intake valves. Has anybody installed an oil catch canister, and if so, how much oil has it collected? What are your thoughts on whether it's worth installing? They're cheap so it's more of a time...
  7. Something to be aware of - skyactiv pcv system

    2014-2018 Mazda 3 Skyactiv Engine and Performance
    Didn't see this mentioned here, but I may have missed it. If so sorry for the repost. There's nothing positive about the 2.0l skyactiv pcv system There'S Nothing Positive About the 2.0L SkyActiv PCV System! - MX-5 Miata Forum Overall, I'm not too worried with my 2014, but i am glad I am aware...
  8. pcv valve and occ helpful info....

    2010-13 Mazdaspeed 3 How-To Guides
    Ok so I've been dealing with some issues with the pcv valve on my 2012 speed3 due to attempting to install a OCC and breaking my pcv valve. It happened over a weekend when dealer was closed and auto parts stores do not carry this part in stock yet. So I wanted to post some helpful info incase...
  9. Question about PCV breather

    2010-2013 Mazda 3 Engine and Performance
    Can you put a breather on the engine even if you have stock intake? Reason why I ask is I saw one of the SRI's had a breather for the engine and was not connected to the intake...so can I do mine like that except with stock intake? Heres a pic of my engine bay
  10. 2.5 PCV system

    2010-2013 Mazda 3 Engine and Performance
    Where is the Main PCV valve and system going to this engine? I know there is one Line running from the back on the valve cover into the accordian hose PRE throttlebody but I am sure there has got to be one more. Connected after the throttle body, need to know can'y have too much crankcase pressure!
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