Generally this is caused by either a lack of lubrication of the cables or one of the cables has a "set" to it. Pull the inner cables out and they should lay in a large circle with no bends or kinks. Do it on newspaper to keep them clean. If the are OK, lube them up and put them back in and see if it helped. Use "Speedometer Cable Lubricant". A large auto store should have it. Make sure the lower cable support is on the car and not bent or broken too. While you are working on the speedometer lube the angle drive and check the hole in the plastic drive disc. It has to be square, not round. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "daviddelorean" <daviddelorean@...> wrote: > > I had my speedo worked on to make it more accurate. It is better, but > not 100% up to par. What causes a speedo to jump around? > > From 0-15 it fluxuates all over, from 15-45 it is steady. From 45-55 it > fluxuates. From 55-65 it is accurate. From 65-85 it fluxuates wildly. > 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/