Thanks for the reply, Brad. The cold engine lock-out is working on the '68. After the engine warmed, the system came on with the "Hi-Auto" button already pressed in waiting. Dave --- Brad Hogg <roadhogg@xxxxxxx> wrote: > If the 68 system has anything in common with the > 74-78 system, that symptom > is quite common. There is a vacuum switch that is > turned on by hot wanter > from the engine. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail