PCV valve

4.2 V8 32v FSI - 444 bhp
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noddy
2nd Gear
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PCV valve

Post by noddy » Wed Jan 30, 2019 8:16 pm

Can anyone point me in the direction of a part number and stockholders? Looks like mine is playing up...


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mdrs4_82
Neutral
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Joined: Thu Jan 03, 2019 9:15 am

Re: PCV valve

Post by mdrs4_82 » Fri Feb 01, 2019 8:09 am

Out of curiosity, how have you diagnosed this ? Normally the visible signs are excessive black smoke from the exhaust...

noddy
2nd Gear
Posts: 140
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Re: PCV valve

Post by noddy » Sun Feb 03, 2019 5:09 pm

It’s a whistle that comes on tick over, or coasting below 2k. There are 2 valves, one is physically pulling a vacuum through the breather hole suggesting the diaphragm is gone. Cars not pulling oil through like you say, I think this is because there are two on the b8, where there was only 1 on the b7. Had to go to my mechanic in the end as I gave up trying to find part numbers, £115 for the part alone.


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jangol
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Re: PCV valve

Post by jangol » Sat Apr 06, 2019 3:15 pm

noddy wrote:It’s a whistle that comes on tick over, or coasting below 2k. There are 2 valves, one is physically pulling a vacuum through the breather hole suggesting the diaphragm is gone. Cars not pulling oil through like you say, I think this is because there are two on the b8, where there was only 1 on the b7. Had to go to my mechanic in the end as I gave up trying to find part numbers, £115 for the part alone.


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Did you get this sorted in the end?

noddy
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Re: PCV valve

Post by noddy » Sat Apr 06, 2019 3:16 pm

Yep, local specialist sourced it. £180 fitted. Diaphragm was shot.


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jangol
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Re: PCV valve

Post by jangol » Sat Apr 06, 2019 3:19 pm

noddy wrote:Yep, local specialist sourced it. £180 fitted. Diaphragm was shot.


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Which side had gone? Where did you spruce part from..

Very quick fix (even I can do it)

noddy
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Re: PCV valve

Post by noddy » Sat Apr 06, 2019 3:22 pm

Right hand side, specialist got it so no idea. Defo a diy job, vat and labour always bumps up the price.


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jangol
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Re: PCV valve

Post by jangol » Sat Apr 06, 2019 3:26 pm

Cool, that’s the one I’m going for....

JA

noddy
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Re: PCV valve

Post by noddy » Sat Apr 06, 2019 3:26 pm

What’s your symptoms?


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jangol
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PCV valve

Post by jangol » Sat Apr 06, 2019 3:28 pm

This loud winning noise,

Hi all,

This noise appeared yesterday?

It appears to happen when your NOT accelerating!

When you accelerate it appears to stop.

Happens at tick over

However if I unplug right hand side one (as you face the engine) it’s stops

noddy
2nd Gear
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Joined: Wed Jul 12, 2017 12:44 pm

Re: PCV valve

Post by noddy » Sat Apr 06, 2019 3:30 pm

If you unscrew the oil cap does it stop? if yes, you need the part.


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jangol
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Re: PCV valve

Post by jangol » Sat Apr 06, 2019 3:32 pm

I’ve pulled off the plug from engine side & it stops, similar to removing the cap?

noddy
2nd Gear
Posts: 140
Joined: Wed Jul 12, 2017 12:44 pm

Re: PCV valve

Post by noddy » Sat Apr 06, 2019 3:36 pm

Yep, it breaks the vacuum


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jangol
4th Gear
Posts: 522
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Re: PCV valve

Post by jangol » Sat Apr 06, 2019 3:39 pm

Diagnosis complete lol

Will source item on Monday.. thanks again



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