What happens when you turn A/C on ? Does idle speed sink ? And what does your volt-meter show then ? What idle speed do you get now ? Above or below 775rpm ? If it is below - do you have to push the gas peddal now when you turn the key ? What if you start the car when cold ? Will it keep runnning by itself ? In the good old days of carburators we didn't have idle speed motors, but we had stuff like a choke that we had to pull or mechanical systems that would rise idle when cold. Those guys wouldn't have installed an expensive system 25 years ago if it was useless. It may not be perfect, but it's not useless. Elvis Just want to say thanks for the input. I did pull the plug on the regulator and the car idles perfect. I drove it yesterday and today.No more up and down with the idle. Doesn't want to stall and fires right up. I have to agree with video bob. The regulator is just one of those parts that are there just to complicate things. Thanks again. Ed 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/