MK5 Golf GTI
All Things Mk5 => How to Guides / Troubleshooting => Topic started by: smithyc1987 on January 15, 2014, 07:41:36 pm
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As title my 2008 gti 55,000miles full vw history.
The idle keeps raising on its own then falling then repeating.
Heres a quick video,
Please excuse my daughter in the background.
Any help or ideas appreciated.
http://i617.photobucket.com/albums/tt256/smithyc1987/88AC3063-E678-4BC6-98F8-2FFC844BD29E-452-000000A533839424_zpsa61ef415.mp4
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Blown PCV valve :smiley:
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As he say ^^^^
This is worth a read
http://www.mk5golfgti.co.uk/forum/index.php?action=printpage;topic=71121.0
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Cheers lads, easy/expensive fix?
Also the temperature dosent seem to get up to middle as easy sometimes and drops and rises
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Cheers lads, easy/expensive fix?
Also the temperature dosent seem to get up to middle as easy sometimes and drops and rises
Read this (relevant section):-
http://www.mk5golfgti.co.uk/forum/index.php/topic,44709.0.html
20 minutes should sort it for the PCV valve.
The cooling temp may need to develop but there's a few interesting threads on cooling problems like this
http://www.mk5golfgti.co.uk/forum/index.php/topic,75756.0.html
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Done the test and removed sipstick engine splutters when put back in all is well.
So not the pcv valve.
Throttle position sensor ?
It only seems to do it when warm
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Done the test and removed sipstick engine splutters when put back in all is well.
So not the pcv valve.
Throttle position sensor ?
It only seems to do it when warm
Still PCV :wink:
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Y y y y ??????
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Y y y y ??????
If you've never replaced it, for the sake of £37 I would.
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Also seems to be slightly running on for split second longer after ignition is switched off????
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Also seems to be slightly running on for split second longer after ignition is switched off????
Change it, and report back :happy2:
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Done the test and removed sipstick engine splutters when put back in all is well.
So not the pcv valve.
Throttle position sensor ?
It only seems to do it when warm
If you pull the dipstick out and it runs rough, and when you put it back in it still runs roughy it's the PCV.
I think Steve might have mentioned it once or twice already. :laugh:
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No when i put dipstick back in it runs fine.
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No when i put dipstick back in it runs fine.
Well if it runs fine then you dont have a problem! :laugh:
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Exactly the same as what I had, sometimes it would do it and others it wouldn't. It's the pcv, change it and it'll be fine.
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PCV / Coils / Plugs / MAF / TB
Personally, I would scan it to see if there's a misfire recorded and which bank.
I'd check the plug gaps and perhaps replace if due.
Definitely look at swapping the PCV and go from there.
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PCV / Coils / Plugs / MAF / TB
Personally, I would scan it to see if there's a misfire recorded and which bank.
I'd check the plug gaps and perhaps replace if due.
Definitely look at swapping the PCV and go from there.
Wont be those ^^^
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A Misfire not potentially caused by faulty plugs or coils... :confused:
Doesnt sound like a misfire to me.
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Also, when my TB was dieing, it did exactly the same as in that video, revs up and down at idle.. Replaced it and no issues... Never touched the PCV, idles perfectly.
It's most likely the PCV has broken but its not always the same issue.
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Tb??
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Throttle body.
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New video it is now doing this hissing when remove dipstick and idling high.
http://i617.photobucket.com/albums/tt256/smithyc1987/454DB26A-25A0-4153-9B2B-39EC38E91253-1808-000001DEE1B93E5C_zpsec0052d2.mp4
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Revision N is the latest, grab one! :wink:
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PCV
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Exactly the same as what I had, sometimes it would do it and others it wouldn't. It's the pcv, change it and it'll be fine.
Cheers Eddie, at least someone else agrees... :innocent:
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I think everyone agrees it could be the PCV Steve... except for perhaps the OP, lol.
Do it do it do it (http://www.youtube.com/watch?v=JoqDYcCDOTg)
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Still think itd pcv ok will get 1 sorted in the week.
Doesnt seem down on power tho and only does it when warm.
Also coolant temp gauge seems to take longer to get upto temp and also drops up and down quite a bit
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Not pcv but looks like engine temp sensore right side of engine. When unplugged the hunting and rough idle stopped.
Also threw up a intake leak code after we unplugged the temp sensor??
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Have you actually replaced the PCV yet ?
Don't forget, by disconnecting items, will throw up fauts in other areas that may not be directly connected to the faulty item.
Remember the PCV is not electrical and will not show as fault if your using VCDS!!!
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Any members local that you can swap over to test..?
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Vw are £34 plus vat for pcv and £18 plus vat for pcv gasket.
I cant afford £60 if its not the pcv.
All the tests show pcv working fine.
There was a 12degree difference between acctual engine temp and what it said on vag.com/ temp gauge.
So unplugged temp sensor and engine stopped idling erratically. ??
So i thought i would start here
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Ok... Well do this for me. Find the PCV and take the connector off the intake manifold.... Now blow down that pipe. Report back.
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Additionally, is it normally the check valve that foobar's, would it be dislocated in the pipe'per'ridge.
Another solution... book your car into VW for a winter check, iirc it's about £20, you get a free oil or winter pack, both worth about £15... they will give the car a full going over, scanning it etc. etc. and report back with any faults and parts (with part numbers and blown diagrams) of problem areas... which is normally worth about £60 on its own. :happy2:
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So on my lunch 15 i changed the pcv.
Not had chance to drive the vehicle yet but upon blowing down the pipe from inlet. I couldnt it was closed. But i could suck and it was clear.
To me that sounds like pcv was fine ???
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Well just got home and about to go for a drive,
Just ripped apart the old pcv and the diaphram had a 1inch split.
Do we think this could be causing the problems :happy2:
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Well just got home and about to go for a drive,
Just ripped apart the old pcv and the diaphram had a 1inch split.
Do we think this could be causing the problems :happy2:
Yes, but I told you this ages ago :laugh:
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Well just got home and about to go for a drive,
Just ripped apart the old pcv and the diaphram had a 1inch split.
Do we think this could be causing the problems :happy2:
Yes, but I told you this ages ago :laugh:
Yeah. But it's not the PCV Steve.... :wink:
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:signLOL:
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Theres no need to be dicks, to be fair all tests showed the pcv to be fine and working im not just gonna replace bits for the sake of it. :happy2:
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Easy fella, it's just a bit of banter.
You're gonna get a bit of sh*t from people who've been practically screaming PCV for over a week :signLOL: