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  1. 02-15-2016 10:51 AM #1
    Jey4
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    Oil cap leak with catch can setup

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    So I needed to replace my pcv and decided to go with a catch can setup. It's been running great for about a month now and this morning I noticed a rough idle. Seen smoke coming from the hood along with the smell of oil so popped the hood and oil is spitting out the cap. I know this is a symptom of a bad pvc but with a catch can setup what could be the problem now?

    -Jey
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  2. 02-15-2016 10:59 AM #2
    onedumslack
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    Wow. Can you post a pic of how you have the catch can installed as well? And which catch can is it?
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  3. 02-15-2016 11:16 AM #3
    james12lucy
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    Frozen liquid in the hoses...
    B7 Avant, 6MT, Quattro - Brilliant Black: JHM 93 Octane Stage 2 tune, APR HPFP, S3 Injectors, JHM Test Pipe, Stasis Catback, R8 coils, 034 TIP, Custom CIA, 18" VMR 710, Podi Digital Boost Gauge, RS4 rear sway bar, RS4 grill, Eurojet Billet VC, 42DD catch can, Ohlins SL Coilovers w/ Hyperco springs, OEM Bi-Xenon retrofit, GFB DV+, Brembo 18z.
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  4. 02-15-2016 11:17 AM #4
    aluthman
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    Quote Originally Posted by james12lucy View Post
    Frozen liquid in the hoses...
    Or the can itself is full and frozen. Something is causing massive positive pressure in your crankcase and the oil cap was the easiest way for it to get out.
    -Adam

    '07 DTM A4 2.0T|6MT|EFR 7163 Twin Scroll|DoTuning|Built Motor|Meth and other go fast stuff…
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  5. 02-15-2016 11:19 AM #5
    vce1232000
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    Quote Originally Posted by aluthman View Post
    Or the can itself is full and frozen. Something is causing massive positive pressure in your crankcase and the oil cap was the easiest way for it to get out.
    x2
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  6. 02-15-2016 03:29 PM #6
    Jey4
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    It's an 034 Billet with the oil return line. Something must of froze up inside. When I drove the car home from work it ran fine. It's been well below freezing for the past few days here in NY.

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    -Jey
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