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Username Post: Intermittant electrical problem        (Topic#351131)
"8th Year" Gold Supporting Member
Posts: 1651
Age: 73
Loc: Las Cruces, NM
Reg: 01-20-11
05-16-18 11:05 AM - Post#2734108    

I have an intermittent electrical problem with my '69 El Camino SS 396. Car is stock except for Edelbrock intake manifold, carb, cam, MSD distributor, and exhaust pipes. Sometimes when I turn the key, EVERYTHING is dead including dome light, headlights, horn, and starter. Sometimes, everything is OK. And sometimes it starts OK and then dies at really inconvenient times.

I have replaced:

battery cables
ignition switch on steering column
ignition switch connector

I'm looking for suggestions on what to look for/check out and how to isolate what is causing my problem.

Has anyone had a similar problem?

Thanks for any suggestions.

Mike Ahlmann
Las Cruces, NM
'50 Tin Woodies (two) Ramon and Willard
'58 Impala Sport Coupe
'69 El Camino SS-396
'07 Ford F150 to haul parts for above
'16 Ford Explorer 3.5 EcoBoost - Red Rocket

"5th Year" Gold Supporting Member
Posts: 2454
Age: 32
Loc: Utica ny
Reg: 04-13-10
05-16-18 07:06 PM - Post#2734142    
    In response to mahlmann

You have a bad cable or connection.
Where your main 12v goes to the starter inspect it carefully. Was it replaced?

You may also have a bad fusible link that goes from the main cable to the firewall.

Same with the ground. Cable was replaced?
Is ground going to the engine, frame, and fenderwell?

Turn the key on with a few loads, KOEO. then do a wiggle test of the battery cables. Hopefully it will present itself.
I would say whatever it is should be rather obvious

Old School GM fan FOREVER

Edited by rockfangd on 05-16-18 07:10 PM. Reason for edit: No reason given.

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