Starting Issues

[decoupe]

My intermittent starting difficulties have been partially resolved in that fuse #7 is no longer blowing on the run position of the ignition switch. Turned out that there was a worn insulation on the green wire on the high/low beam selector. Shrink wrapped it and run position solved.

I still have intermittent starting issues and have eliminated the starter and solenoid (had it checked/serviced), ignition switch (new), battery disconnect, battery and alternator as causes which leaves??? Had to do a push start (me in car) that resulted in cheap shots by wife and daughter (them pushing) that involved buying a new car.

My battery is under the rear seat and is grounded to the arm rest support bracket - bare metal contact and tight bolt. Are there differences in the strength of the ground in different locations? This problem did not show up last year when I did the battery relocate.

Doug

 

[MichaelP]

Are there differences in the strength of the ground in different locations?
Doug

Definitely. I'm surprised the car started at all. You're asking the current to get to the body across zinc plated screws and paint. Clearing out a spot for contact just about anyplace else for direct contact would be better, though the best ground would be achieved at or adjacent to a frame rail.

 

[decoupe]

The ground cable has copper battery 5/16" bolted fitting and the bracket at the attachment is bare metal but I get your point that sheet metal spot welded to sheet metal is insufficient. I'll make a change to the frame or something attached to it.

Thanks.