Do you hear the engine note change or is this just the way the tach is behaving? If the engine is revving up with no increase in speed, I would suspect a slipping clutch (if you have a manual transmission) or an automatic transmission problem. -- Mike -------------- Original message from "Paul J " <willinot@xxxxxxxxxxxxxx>: -------------- > Hi Guys, > > > > Took the Delorean out for a drive yesterday and noticed a strange problem. > > > > When driving in third or fourth gear at around 2000rpm, if I accelerate hard > the engine rpm climb as the speed increases up until around 3000rpm and then > suddenly the rpm increase further to around 4000rpm with no increase in > speed. After the sudden jump the car continues to accelerate gradually > until the speed meets the rpm of the engine. [moderator snip] 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/