prestonian

I feel like I am spending way too much time on this forum lately......

Clutch question is the latest.
Car has 180k and the clutch was replaced at 110k.
Problem: When coming to a traffic light or stop sign I am generally in 2nd gear. I often put car in neutral ahead of time and coast to a stop or just slow down. The major issue I am having is sometimes the clutch does not fully disengage and the engine wants to stall.

On a few occasions the car has stalled and many cases I can bump start the car as I am still rolling, but this is certainly not a good situation to be in.
Gears never grind or anything like that. Clutch doesnt slip. Clutch has pressure high up in the stroke.
Is there a way to adjust the clutch pedal operation so that it pulls the clutch plate further away from the pressure plate?
Opinions appreciated.

UrS4boy

If you really have the transmission in neutral and the clutch is out, it is not the clutch that is causing the stalling, it is likely your N71 Idle Stabilization Valve (ISV). It is either dirty and needs cleaning or the ECU is not sending the correct electrical signal to it because the idle switch on the throttle poteniometer isn't working properly.

N71 ISV info: Link 1

G69/F60 Throttle potentiometer/idle switch info: Link 2

Both of those links come from this dynamic Engine Bay Device Map (labels are all hot links): http://members.shaw.ca/speedtek/UrS%...ice%20Map.html

prestonian

The idle, occasionally used to bounce a little low to about 500 rpm for just a quick second and then recover. It now appears to stop at about 750rpm.
Driving this week will determine if this was the fix.
Hopefully it was.

Curious,
How many S-car's have you owned and how did you gain the knowledge you have regarding these cars?

UrS4boy

LOL. Just the one. For 15 years (since 1998). However, I have been on three UrS forums since then and have a good memory and LOTS of resources. I started the original FAQ here (now in tatters) back in 2005 (06?) after I got tired of repeating the same answers to the same questions. (Most UrS4/S6s end up with the same problems eventually). So I wrote up the kind of info posts that I linked you to.

scarman

Mike, take advantage of the present and record all these resources now. If you wait until your part fails, Dave may not remember where he put it.

UrS4boy

Hey! I resemble that remark!!



Actually that is one reason why there is this (click on its labels):

http://members.shaw.ca/speedtek/UrS%...ice%20Map.html