Possible causes include: dirty injectors vacuum leaks defective CPR timing advance problem (vacuum or mechanical) One or more of the parts you replaced are defective Misgapped spark plug, ignition wire broken or not snapped on completely I would suspect the most recent work first. Go over all of the vacuum hoses, with the tight working quaters you may have knocked something (like a vacuum hose) loose. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "schab932000" <schab932000@...> wrote: > > Hi Everyone, > > I got an issue that I trying to put my finger on. My car starts fine on cold starts, but runs > with an idle that rumbles... not very smooth. 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/