Firewall bulkhead connector is a good candidate. There is a small (5/16 or 3/8) bolt that goes thru ther middle, tightening it to the fuse block. Remove that bolt & visually check the male connectors for wear and the female connectors for being spread.
Another possibility is the connection at the junction block. The JB is on the core support, probably near the battery but it could be on the other side. I'm not familiar with 68 wiring at all. Finally, according to my 68 shop manual, there is a joint on the line between the j-block and the alternator. 4 wires come together, from the j-block, to the alternator, to the Voltage reg, and to the horn relay. Don't know whether the joint is crimped or soldered but its also a place for things to go bad. rick schaefer 72 El camino http://www.chevelles.com/showroom/rick/elcamino17.jpg ACES #00140 Team Chevelle #00038 -- "Scott Somers" <[EMAIL PROTECTED]> wrote: Since I have only been a Chevelle owner since my divorce in April ( she got the '55 Chevy) I am not that familiar with the operations of the "newer" cars. I have a 68 SS396 ( cloned but it's still a Chevelle and fun to drive) It has been in the shop a lot of the time for more upgrades - front end, rear end stuff, discs, stereo system, dual electric fans and so on. The engine has about 2000 miles on the rebuild but we're fixing to pull it for a Comp roller cam, roller rockers, new converter on the 700R4, new bracket system, a new Air Gap manafold in the Permastar finish, yada, yada. It seems to be in good shape. My wrench is a serious go fast engine builder and feels the car is strong. Here's the problem. left the house on Monday to go for a spin. About 4 miles from the house, running fine, then quit. A "pop" then all, I mean all, electrical went away. While waiting for the flatbed, I checked the battery ( a 2 month old Optima) and it registered 12.53. Before the flatbed got there, I tried again to start it and it fired right up, ran for 15 seconds and stopped - again no electric to anywhere. Full power at the battery but none anywhere else. Actually a little, enough to barely power the inside lights for just a second and then dead. Walked out this morning and the batter registered 12.4 but it fired right up. I turned it off and came in to the office. Is there a thermal electrical thang somewhere in Chevelles. Obviously I cannot trust going anywhere in it until it is found and fixed. Reliability is way high up on my list of happys. Thanks in advance. Scott
