Sticking Throttle at Full
Sticking Throttle at Full
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Discussion

C15

Original Poster:

350 posts

272 months

Monday 17th November 2008
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Hi Guys,

just a quick note.. maybe some of you remember I thought I had a snapped throttle cable. Well finally at the weekend I managed to get a few minutes to take a look at it.. (first time I took the bonnet off ever!).

Well low and behold bonnet off.. noticed some scary things more to that in a bit!!

1st things 1st; took of the airbox (Damn how does that normally come out?), took me a few minutes to get it out from under the wiper linkage!!
Top half off; filter off, now looking at a gaping hole in the side, looks like the rear bracket has broken the lower half seal.. (have to figure out what to do later)

Now removing the lower half.. nice and simple.. so now I am looking at the throttle cable linkage confused how do you take that off; ok so I remove the 2 very rusty allen bolts from the throttles.

Now, the other end. try and squeeze into the footwell curse , remove the 2 allen bolts at the bottom and the 2 at the top of the Aluminum pedal surround, (why does every text say there are only 2 bolts??) :-)

OK so I am now looking at 2 confusing things; cable fine!! yikes just popped out of the pedal linkage.. How did that happen? confused

So now back to the throttle linkage.. make sure movement is OK.. guess what.. Throttle bodies 4,5,6 stick at 3/4 open; (had noticed this a couple of times when driving on the Autobahn but always flciked back into place) so more or less all is clear, how the pedal end popped out. idea

Now use loads of WD40 to loosen the T/B's; things start slipping again, but I also noticed that 456 move at the sametime as they rotate, so it forces the linkage and maybe butterfly to touch the side of the body?? Anyone got any ideas what to do about this??


Put it all back together, furiating trying to put the pedal end on!! rage

However, car started again no problem after 5 weeks without use!! biggrin

Comments on what to do about the throttle bodies would be welcome


Cheers

Steve

so called

9,160 posts

238 months

Monday 17th November 2008
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[redacted]

Tuscanuwe

323 posts

224 months

Friday 21st November 2008
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"Result is a lot of movement (and noise) of the butterflys.
Jason at Str8Six overhauled mine and upgraded with pressed in Roller bearings."

Can you give me the aprox costs for overhauling the
butterflys.
Mine is also from 2000 and has same symtoms!

Thanks in advance

Uwe