GolfGTIforum.co.uk

Model specific boards => Golf mk2 => Topic started by: hobbes on 01 November 2008, 18:44

Title: Throttle housing 16v
Post by: hobbes on 01 November 2008, 18:44

Hi,
I think my throttle housing is a bit sticky - when i rev it some times the revs stay anywhere up to 2k when i use my finger but occasionally needs a nudge to push it home.  any ideas for rectification?

Title: Re: Throttle housing 16v
Post by: Khare on 01 November 2008, 18:46

bit of wd40 on the joints and should cure problem.

Title: Re: Throttle housing 16v
Post by: hobbes on 01 November 2008, 18:48

I've tried a bit of 3-in-1 but it doesn't seem to have achieved much.  will WD40 be more effective?

Title: Re: Throttle housing 16v
Post by: Khare on 01 November 2008, 19:01

there all about the same. but i stick to wd40, does everything :smiley: try spraying the pedal box, where the joints are for accelerator pedal. i had it on my 1.6 when i first bought it, and a quick blast of wd 40 and never happened since.

Title: Re: Throttle housing 16v
Post by: JC on 01 November 2008, 19:02

top tip, CLEAN before just whacking a lubricatant of any form on there  :wink:

if its gunked up, your just pi$$ing in the wind  :smiley:

Title: Re: Throttle housing 16v
Post by: hobbes on 01 November 2008, 19:05

Hi Chuff, whats the best way to clean it - take it apart and scrub?

Title: Re: Throttle housing 16v
Post by: JC on 01 November 2008, 19:24

all depends on how indepth you wanna go,  :laugh:

a good wipe round with a cloth will get rid of most,  :wink:

 if it continues then you might have to go more indepth.  :shocked:

Title: Re: Throttle housing 16v
Post by: Conker on 02 November 2008, 14:05

Do mean the lever visibly doesn't fully return to the stop position, i.e. theres a definite gap, in which case...

1) Advice as per what the guys said above.
2) Try adjusting the throttle cable via the rubber bung on top of the throttle body to make it looser.
3) New throttle cable is an option as they can get stiff.


If there isn't a visible gap, it might be your idle switch (the rubber button on the throttle stop) isn't being pressed firmly enough which could give the high rev symptoms you describe as the ISV wouldn't be engaged properly. This might be cured with a new idle switch.

Title: Re: Throttle housing 16v
Post by: Diamond Hell on 02 November 2008, 18:30

Pffft, the problem is far more likely to be inside the throttlebody.

Get the main inlet pipe off and have a look inside - including opening the throttle - £10 says there's loads of gunky black-brown rubbish around it.  You'll need carb/injector cleaner and a toothbrush to get it off and that should sort you out IF that's the problem.

More investigation needed, I think.