[s-cars] dangerous binding/sticking throttle issue?

[Ian Duff]

Given it seems to happen at WOT, and not idle, have you tried rocking the motor to see if perhaps aged motor mounts might be allowing the engine to shift a smudge at WOT, perhaps causing some binding in the throttle linkage?

-Ian Duff, sent from my mobile, please excuse the brevity, spelling and punctuation.

On Jun 5, 2011, at 9:33, chris chambers <fastscirocco_2000 at yahoo.com> wrote:

> JC,
> 
> I would give the throttle body, throttle blade and shaft a through cleaning, 
> contaminants there could cause a sticking throttle.
> 
> HTH
> Chris
> 
> 
> 
> 
> ________________________________
> From: JC <jc at j2c3.com>
> To: S-Cars <s-car-list at audifans.com>
> Sent: Sun, June 5, 2011 8:09:27 AM
> Subject: [s-cars] dangerous binding/sticking throttle issue?
> 
> I posted this on QW but think it might be a better question for the
> eggzperts over here... any suggestions hugely appreciated as always..... 
> 
> Always wondered if I had a stuck throttle if I'd have the presence of mind
> and reaction time to shut down the key fast enough. Apparently I do. 
> 
> Happened on first WOT pull after a whole bunch of work including oil change,
> installing Samco's and metal intercooler etc. etc. 
> 
> Pulling over couldn't find a single thing sticky w/ the throttle cable or
> shaft/plate motion. Started up fine, another drive and no repeat, BUT I
> occasionally seem to feel some mechanical resistance/stickyness/binding down
> just off idle... like shifting when I first start to press there's a bit of
> binding then it releases. Maddeningly whenever I check this static w out
> engine running I can find NO problem and everyting runs smooth as silk. 
> 
> Is there any known problem/issue/thing-to-check here? Cruise linkage seems
> fine and never touched. The dashpot thing I removed briefly to make getting
> the hose clamp on easier but AFAICT is all back exactly as previous and
> working fine...
> 
> ---- current ----
> 1995.5 S6 Avant 
> 2003 E46 M3 Cic
> 2008 A3 2.0tDSG
> ---- past lives ----
> 2006 A4 2.0TQA
> 1998 A6Q 2.8 PES G2
> 1989 200TQA SJM
> 1990 CQ
> 1997 A4 1.8TQ Wett
> 1987 4kCSQ 
> 
> John J. Cunningham
> <mailto:jc at j2c3.com> jc at j2c3.com
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