Well, I know that since that wire feeds the whole distributor, as it was breaking down electrically, it was not passing electricity as well as it should, so I was have no-fires or mis-fires. How that translates into "tach flicker", I'm not exactly sure. The tach takes it's input from one side of the coil, one of the small connections. The high-tension wire to the distributor is an output. The coil should be transmitting regularly, and the tach I would think should be steady. The voltage is just not travelling down the wire like it should, so how it causes the tach to jump I don't really know. Obviously I'm missing some connection between primary and secondary ignition or how the tach ties into this. How old are your wires? If they're old, replace the set. Also check the small leads on the coil for cleanliness and tightness. Rich A. #5335 --- In dmcnews@xxxxxxxxxxxxxxx, "drdhdmd" <doctorDHD@xxxx> wrote: > Rich A. > > Did the new coil wire fix your tach flickering? > > If so, can someone explain to me(us) how a bad coil wire could > cause, "...the tach flickers even when parked and idling." > > My tach flickers at idle too. I will replace my coil wire let you > all know. > > Dave and 6530 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/