My 99 C2 has a slightly rough idle, revs seem steady enough but the car shakes a little bit, slightly more than my 95 993 did. Is this typical for a 99 996? It also hunts a little bit when the weather is cold (30s).

TIA,
Vic
99 C2 cab

 

my car has the same problem once in a while. I'm going to try to change my airfilter to see if that fixes the problem. i have a 99c2 fyi.

 

My 1999 C4 has 15,000 miles on it also idles rough, and has since new

 

Add me to the list as well. Strangely, it seems to get better when the a/c is on

 

Probably because it idles a little higher when the AC's on. Could just be a characteristic of the car, I suppose ... every 993 I've been in had the shakes at idle, as did all the older 911s.

Vic
99 C2 cab

 

Gents;

Why don't you remove the Idle Stabilizer and give that a good cleanout with carb cleaner,....

 

Where's it at on the 996, Steve?

Vic
99 C2 cab

 

Its attached to the left side of the throttle body and I'd remove it and clean it, and the passages out very thoroughly.