All Things Mk5 > How to Guides / Troubleshooting

Almost stalling on idle

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zub-gti:

Tonight when I started her up she started stuttering and almost stalling on idle, seems
fine at speed on the motorway and cruises
fine... However like a diesel on idle??

Could this be a sensor or maybe the diverted system?

Z

Saint Steve:
Do you get a small hissing sound from the engine when you shut down?? under the airbox?

Possible Blown PCV. Mine done the exact same.

zub-gti:
PCV ??

Saint Steve:
Pressure check valve on the engine Breather, stablize's the crankcase pressure inside the engine. If thats blown, then engine wont idle smoothly.

zub-gti:

Thanks, that would make sense...
Where is this located ?

Is there anything obvious I could see / hear that would pin point this as the problem ?

Any idea how much these are ?

Funny, I did notice the DV for the first time the other day... is it normally heard...?
(It was on a fairly quiet street with walls either side)..

thanks again,

Z

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