Hi All, I am looking for some advise on my rev counter problem.. When I run the car the rev counter works correctly... I then switch on the air conditioning switch to either 'max' or heater and it still works ok.. However as soon as I then switch on the fan the counter leaps up by a couple of thousand RPM (The engine does not actually change by this amount) and the counter then leaps about with a mind of its own !! Obviously some electrical problem but not sure where to start ?? Regards john. 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/