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Model specific boards => Golf mk5 => Topic started by: LAD on 27 November 2009, 15:38

Title: Idle Problem - Solved.
Post by: LAD on 27 November 2009, 15:38
Had to take car to mechanics to sort out idle problem. Revs going up and down from 1000 to 2000. Problem 2 spark plugs had gone. However the car is know is idleing at 600 to 800 but making chugging noise - almost like it wants to stall due to low revs

Possible causes please? coil?, CAT?

Had the car diagonosed apparantly its the diverter valve. They are unreliable due to diaphragm design and are prone to failure. There is a new design available which is a new piston type.
Title: Re: Idle Problem - Solved.
Post by: FamilyDub on 30 November 2009, 09:51
Had the car diagonosed apparantly its the diverter valve. They are unreliable due to diaphragm design and are prone to failure. There is a new design available which is a new piston type.

This is almost identical to my issues.

There's an OEM later - and supposedly stronger - revision 'D' diverter valve that can be fitted, which is part number 06H145710D. About £45 from a stealer.

Hope you get it all sorted
Title: Re: Idle Problem - Solved today/PICTURE
Post by: LAD on 30 November 2009, 11:54
The following valve had gone! Cost £30 from stealers.  The car now purr's now!!!!(http://i612.photobucket.com/albums/tt204/ladpower/100_0311.jpg)
Part no. 06F 129 101 L :smiley:
Title: Re: Idle Problem - Solved today/PICTURE
Post by: FamilyDub on 30 November 2009, 16:30
The following valve had gone! Cost £30 from stealers.  The car now purr's now!!!!
Part no. 06F 129 101 L :smiley:

Ahhhh, ok.... That looks like a PCV!! 

Glad it's sorted! :afro:

EDIT: Check this thread for more info, it does seem to be the PCV:-

http://www.golfgtiforum.co.uk/index.php?topic=126631.0 (http://www.golfgtiforum.co.uk/index.php?topic=126631.0)
Title: Re: Idle Problem - Solved.
Post by: LAD on 30 November 2009, 18:34
Yep. PCV aka Snail - Named by stealers.