David - I replaced the fuel pump a week after it started acting like this. Tank components are fine with no water in there. Does it no matter the fuel level. The frequency valve is buzzing. There is no chance of water in the plug wells as it has been in the upper 90's for most of the last month and the car is garaged and I've been through the water in the plug wells before so that was one of the first things I checked.. Brand new set of plug wires. Matt- Mixture screw is set as correctly as possible using a dwell meter. I have experienced the mixture being too rich and too lean and this is not the way it acted. There is no smoke. John- First off, you're the best. Thanks for all the phone advice you have given me. There was no idle seeking after about a minute of warm up before this problem popped up. It used to hold real steady. This problem just started with no warning. I thought that maybe I had some water in the tank but that doesn't seem to be the case. I will be happy to check the mixture adjustment again but I find it hard to believe that parking it for a show and then starting it up 3 hours later would cause it to go out of adjustment. The thing will barely Idle most of the time and other times its just fine. It started acting this way right after I bought my benz so I thought that maybe "she" was trying to spite me LOL. I thought that the problem was just the fuel pump as it was getting real noisy but I guess that wasn't it. Thanks to everyone for their input. Alessandros 120 http://alessandros120.com/ (503)370-9951 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/