The current theory is that when you connect another car onto the electrical circuit of the "dead" car it causes a surge that can spike the electrical system of the dead car. The capacitors that fail are only 35 volts so it doesn't take much of a surge to blow them. There is also the possabilty when jumping of accidently doing it incorrectly and applying the reverse polarity. On the newest cars they specifically prohibit jumping the car because of all the computers in them. You are supposed to remove the battery and recharge it or replace it with a fully charged battery. In the Delorean I also believe the other contributing factors include: Age A malfunctioning voltage regulator in the alternator Dirty or loose electrical connections A bad battery A very cheaply designed shift computer made with sub-standard parts. The last factor is probably the single biggest cause. Can you imagine? the FRENCH making a sub-standard part!!!!!!! It is Renault BTW. As bad as it is replacing the 2 caps seems to fix most of the shift computers. That and resoldering all of the cold solder joints. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Elvis Nocita" <elvisnocita@xxxx> wrote: > Why would jumping the car destroy that "computer" ? > > Elvis > > o 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/