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Come along with Eric O. at the SMA shop as he has a look at this 2011 VW CC Sport with a 2.0 that has a customer complaint of running rough and a loud squealing noise coming from engine. Upon pulling codes we have a P0300, P0171, P0506, P0302, P0301, P0303, P0304, P119A and a P2187. Believe it or not these are all caused by one faulty part. Amazing what a little internal vacuum leak can do. Stay tuned to see the fix!

Check out a video from Tom @ Positive Lead Diagnostics on a similar issue: https://www.youtube.com/watch?v=jTSQoMtNksQ
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49 thoughts on “Rough running running lean – volkswagen cc sport”
  1. Avataaar/Circle Created with python_avatars Jason Marks says:

    the fat chicks always whistle and squeal…

  2. Avataaar/Circle Created with python_avatars ALL THINGS CINEMA says:

    awesome work.. side joke,.. you sound like the guy from movie Beetlejuice

  3. Avataaar/Circle Created with python_avatars Jaygo Dan Oconnor says:

    Bro blessed up am a auto mechanic i like how yu share that video educating other young inspired mechanic keep up the good job , final do yu have any used car lift for sale

  4. Avataaar/Circle Created with python_avatars LVCK Media says:

    I have a very similar issue, same engine. Yanked the Dipstick / Oil Cap while running, and noticed a very erratic idle, high vacuum, etc.

    My question (If you're still following these old videos) is, do you remember how the idle was?

    On a cold start my car will start to slightly rev on it's own at idle, it will just bounce the throttle if that makes sense. Just wondering if that's similar to what you meant here with the title of the video.

  5. Avataaar/Circle Created with python_avatars Panther Platform says:

    One of my favorite customers has a 2009 Tiguan with the two point slow. Came in with multiple issues like this one and it did have a few weak coils and original plugs. Replaced all four plugs and coils, performed Italian tune up and it drove great for a few hundred miles before it started acting up again. No lean codes but the plugs were awfully white.

  6. Avataaar/Circle Created with python_avatars boostedsil40 says:

    remember when a pcv was a simple cylinder tube with ball bearing and spring? seriously they must do this over complicated crap on purpose just so it breaks and they make more money.this is why i love pre 2000s cars.

  7. Avataaar/Circle Created with python_avatars William Santana says:

    My 2012 passat sel premium 3.6 started idlimg wilding out the blue. Turned out it was the pcv valve built into the valve cover. Bought the part from 1a auto costed me 110 next day delivery. Paid my buddy 100 bucks of case of beer and a new obd scanner and viola im back good as new. The dealer qouted me 1800 bucks fucking pigs 🐖 😤!!!!

  8. Avataaar/Circle Created with python_avatars Rex James says:

    This comment is probably 4 years late but can this cause a rough idle without engine codes or check engine light?

  9. Avataaar/Circle Created with python_avatars PA Powrstroke says:

    Always check rear main seals on these 2.0 when oil separator fails will cause rear make to blow out and can cause lean codes see it all the time at the dealer

  10. Avataaar/Circle Created with python_avatars doncookbc says:

    thanks !

  11. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Interesting to see it never went into closed loop 🤔 @SouthMainAutoRepairLLC

  12. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Very interesting pcv system I don't work on Bmw's Or VW's I'm used to the Good old PCV right angle tubes with a Hose thanks for sharing Eric O very entertaining @SouthMainAutoRepairLLC

  13. Avataaar/Circle Created with python_avatars cype man says:

    What stupidly complicated design for a scavenging system.
    And the fasteners could have been melted down to make another car.

  14. Avataaar/Circle Created with python_avatars Sree Malga says:

    Could you please give me the part number??

  15. Avataaar/Circle Created with python_avatars paul ellis says:

    never watch a mechanic take the care he does

  16. Avataaar/Circle Created with python_avatars paul ellis says:

    he just blows like the air hose

  17. Avataaar/Circle Created with python_avatars Jon Bingham says:

    OFCOURSE I'M GUESSING YOU CALLED A VW SHOP TO ASK!??! 🤷‍♂️

  18. Avataaar/Circle Created with python_avatars Marcus lex says:

    This may be my issue will test tomorrow

  19. Avataaar/Circle Created with python_avatars Cbo Cbo says:

    I have 20015jetta sport 1.8

  20. Avataaar/Circle Created with python_avatars Cbo Cbo says:

    VW cars take a few cracks to re sink it self I learn that it's not like the average car resink soon as u fix it and most vws decode they self clear they own code by sum bottom on stirring wheel

  21. Avataaar/Circle Created with python_avatars Boah says:

    Question. I just changed mine on a 2013 Volkswagen CC sport and there wasn’t really much suction on the oil cap or oil dipstick but there was a lot on the pcv oil separator. After putting in the new one the suction went to the oil cap and oil dipstick but no more on the pcv separator.

    Do you have any idea why this could be happening? Is this normal?

  22. Avataaar/Circle Created with python_avatars Jessica Houck says:

    How are we going to order the part if you don't tell us what the hell it's called?

  23. Avataaar/Circle Created with python_avatars Thomas Gehlhaus says:

    Code p1242a . Any suggestions for the possible fix?

  24. Avataaar/Circle Created with python_avatars Charlie Huynh says:

    Thank you for your have

  25. Avataaar/Circle Created with python_avatars 99bristol says:

    Vw needs to hire some Russians to harden and simplify their engines.

  26. Avataaar/Circle Created with python_avatars Clayton Hawkins says:

    Just changed out the same part on my bw cc and it made absolutely no difference.

  27. Avataaar/Circle Created with python_avatars Ronald Bergeron says:

    diagnosticdan could help maybe

  28. Avataaar/Circle Created with python_avatars MrOldClunker says:

    Replaced my spark plugs and coil packs. Ran great.

  29. Avataaar/Circle Created with python_avatars Mr Mann says:

    I wish I lived near you Lol… I need some help….. So my 08 cadillac cts4 never ran rough at idle or had any misfires… So I went and had a full tune up done.. Intake gaskets, valve cover gaskets and spark plugs.. So after that my car runs rough only at idle and when i stop at a light.. And if you put your ear to the mufflers you can hear a slight misfire.. Can you offer any advice on what to do next.. One more thing I hear alot of air passing through the pcv line that runs from the top of the intake to the pcv valve..

  30. Avataaar/Circle Created with python_avatars Mr Mann says:

    Awesome video

  31. Avataaar/Circle Created with python_avatars Dj Compton says:

    Good stuff man. Thanks.

  32. Avataaar/Circle Created with python_avatars Jacob E says:

    This car was in a previous video a year before this video, $1000 scan tool just to change brakes

  33. Avataaar/Circle Created with python_avatars David Beachel says:

    I can imagine how nasty the intake components are.

  34. Avataaar/Circle Created with python_avatars 9090papy says:

    What’s the part name ?

  35. Avataaar/Circle Created with python_avatars Ricardo Baldoki says:

    Always great videos! Best on Youtube!!
    Keep going at the VW's @Eric – you'll get there. 😉

    I have a slight rough idle on my '98 Golf Cabrio 1.6 AFT 190k km. (nothing obvious, nothing fixes it) If you can help me fix that I'll buy you a beer next time you're in the Algarve.

  36. Avataaar/Circle Created with python_avatars Dalton Hatcher says:

    Absolutely great video, got my car running within 30 minutes all thanks to you. Appreciate the effort and help!

  37. Avataaar/Circle Created with python_avatars THE ELEMENT says:

    What i learned about this industry individual Some of we machine talk to much more than we know

  38. Avataaar/Circle Created with python_avatars John Sims says:

    How do you know of the motor is blown

  39. Avataaar/Circle Created with python_avatars hak falkner says:

    Super lil vid, but why not put ‘vw PCV valve replacement’ in the searchable main title?! Would help a lot of folks to find this easier. Cheers.

  40. Avataaar/Circle Created with python_avatars Masiah Wardlow says:

    What did he replace

  41. Avataaar/Circle Created with python_avatars Clovis Niclounivis says:

    awsome video , help alot when you have same fault code/issue , thanks !

  42. Avataaar/Circle Created with python_avatars Marty Jansing says:

    Looked to be an easy job. Everything easy to get to. Didn't have dozens of hoses, wires, and brackets blocking. I've read through many of the comments. It appears that most don't like VWs. I'm finishing up a 2000 golf diesel. Rebuilt the front suspension and had to pull intake manifold. Heavy blockage, carbon build-up. 398,000 on it. It ran good before I started on it. Should be like new.

  43. Avataaar/Circle Created with python_avatars Hola! Maniata says:

    Hello,
    Wondering if you could help me with the same engine type but on Volkswagen Tiguan 2012 (2.0 TSI)
    Car ran fine until yesterday there huge whistle noise from engine . Engine idling is rough. Then P0507 code came on. I try to pull the engine oil cap out while engine is running, engine want to stall as there is strong vacuum in engine. Few google search and convince that the pcv valve is the culprit for whistling noise. I replaced with VW OEM part. Engine is now running fine. I reset the code . Open oil cap, still there is strong vacuum and engine wants to stall again. What else could I check for?

    What I replaced so far:
    1/ new pcv valve from VW
    2/ plastic hose from turbo , there are two seals . I replaced just the small one that is about 1/4 “ in diameter because I have one in my spare O-ring kit

    Current issue:
    Can’t have the engine running without oil cap or oil dipstick remove.

    Help!
    Thanks for your time,
    Mannig

  44. Avataaar/Circle Created with python_avatars Brogan Tait says:

    Hey man, vw’s operate in the same way as ford and the rest. The fuel system will switch from open to closed loop as soon as the ecu receives a signal from the lambda sensor. This will happen as soon as the sensor is hot enough and begins generating a signal. A brand new car can switch from open to closed within one minute of startup. An older car or older sensor may take 2-3 mins. If it takes longer then the sensor is lazy. If it doesn’t switch to closed loop then usually the sensor is knackered. You can check with your scope. Also remember if sensor 1 is cooked sensor 2 will still tell the ecu that the car you just repaired is now running very rich. I believe sensor 2 does influence the ecu somewhat on fuel trimming although sensor 1 (regulating probe) is the main boy for that.

  45. Avataaar/Circle Created with python_avatars Isack Hernandez says:

    My oil cap has suction om a 2.0 tsi

  46. Avataaar/Circle Created with python_avatars Hola! Bill Malec says:

    Half expected you to say… Damn this thing drives nice! The reason we buy VWs.

  47. Avataaar/Circle Created with python_avatars RJB says:

    You always mention Dorman. DORMAN IS CRAP! DO NOT BUY ANYTHING FROM DORMAN! That said, you may continue.