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#1 |
Drag Race Newbie
![]() Drives: 2011 GTI Join Date: Sep 2015
Location: NY
Posts: 46
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How to test for bad PCV?
Hey guys i did some research and there seems to be multiple ways to test a bad PCV but i am still confused as to what signs to look for. So far i tested by:
Does this mean that my PCV is still good? |
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#2 |
FIA World Rally Car Champion
![]() Drives: Rabbit Diesel/TDI/2.5L Join Date: Jan 2018
Location: San Clemente, CA
Posts: 549
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Yes I think that is normal. I believe if there is no change it is bad. I just replaced mine so I know it is good and my car does the same as yours when I remove the oil cap.
Last edited by Wascally Wabbit; 03-07-2018 at 02:05 AM. |
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#3 |
Formula 1 Driver
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If higher mileage, just change it out for a new one since it is a maintenance item.
It's a simple swap and a pretty cheap part |
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#4 | |
FIA GT Champion
![]() Drives: CSG 2013 GTI DSG 4DR Join Date: Jun 2015
Location: San Luis Obispo, CA
Posts: 1,245
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Quote:
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#5 | |
FIA GT Champion
![]() Drives: 2010 MK6 GTI 6MT - 2016 MK7 GTi DSG Join Date: Dec 2016
Location: UK
Posts: 1,140
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Quote:
That DOES generally mean the PCV is good, however they can fail in several different ways and most do not directly produce any fault codes, but yours is probably good unless you’re getting other symptoms, Take a look at this, https://youtu.be/hQEciqR1ST8 Sent from my iPhone using Tapatalk |
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#6 | |
Drag Race Newbie
![]() Drives: 2011 GTI Join Date: Sep 2015
Location: NY
Posts: 46
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Quote:
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#7 | |
FIA GT Champion
![]() Drives: 2010 MK6 GTI 6MT - 2016 MK7 GTi DSG Join Date: Dec 2016
Location: UK
Posts: 1,140
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Quote:
I had a failed PCV last year that also took out the rear main! The only symptom was oil dripping from the join between the transmission and engine which started as a few drips but quickly got much worse, I had no CEL’s or fault codes, the PCV rarely logs any faults (directly) if at all, I also had to change the clutch as oil had got onto it as I left it a bit too long! I also changed the flywheel as it had to come off to do the seal so it wasn’t a cheap repair for me, if it is your rear main be sure to use the latest revision and fit it correctly (not like the old revision) or it will leak again straight away! Sent from my iPhone using Tapatalk |
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#8 |
Touring Car Champion
![]() Drives: 2011 GTI 4dr DSG Join Date: Jan 2012
Location: Pottstown, PA
Posts: 214
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i replaced mine at 55k for peace of mind
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#9 | |
Drag Race Newbie
![]() Drives: 2011 GTI Join Date: Sep 2015
Location: NY
Posts: 46
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Quote:
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#10 |
FIA GT Newbie
![]() Drives: 09 GLI Join Date: Jul 2016
Location: Bay Area
Posts: 857
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at a shop rear main seal alone will prob be around 1500. All labor due to removing transmission, bit more difficult if youre DSG.
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#11 | |
Drag Race Newbie
![]() Drives: 2011 GTI Join Date: Sep 2015
Location: NY
Posts: 46
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Quote:
In a dilemma now |
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#12 | |
FIA GT Champion
![]() Drives: 2010 MK6 GTI 6MT - 2016 MK7 GTi DSG Join Date: Dec 2016
Location: UK
Posts: 1,140
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How to test for bad PCV?
Quote:
£1189.08 GBP for me, (around $1650 US) the clutch and flywheel were at cost price as the shop owed me a favour and the PCV was free due to the previous one only lasting a few months causing the rear main problem! ![]() Sent from my iPhone using Tapatalk |
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