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Problem with starter circuit

1412 Views 8 Replies 5 Participants Last post by  jarhead64
Can't figure this out - 63 Nova, 350/T350; starts fine, runs fine. When I turn the ignition from the run position to off, the starter engages for a split second.

I replaced the ignition switch, rewired the engine harness down to the starter. I have it wire with the purple/solenoid wire to the S post; a non-resistor wire from the ignition switch and a jumper to the (+) coil terminal from the (R) terminal. I have an Accel Street Billet that needs +12 volts. I could probably eliminate the wires to the (R) terminal at the solenoid and go directly to the (+) side of the coil but don't think that's the problem. Already replaced the starter and solenoid thinking that the solenoid could be bridged internally.

Any idea why I'm triggering to solenoid circuit when I turn the ignition off?
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Thanks Patman - I'll give that a try tomorrow.
Voodoo - that's what I figured but where. The wire from the starter to the coil provides 12v to the coil at start up, when you release the key the 12v connection stops and the coil is fed by the resistor wire with 8-9 volts.

I fixed the problem by rewiring the engine harness and some of the dash harness. Didn't find anything wrong but problem solved???????

Thanks all for the help.
Thanks for that suggestion, I changed switches 3 times, after market and nos with the same luck. That's when I put a rebuilt engine harness in, still had the problem. Figured it had to be in the dash harness to along with changing over to digital gauges, I rewired the ignition and hot circuits in the dash harness, problem solved.
Thanks Plowman - when I added the digital gauges I took the time to make sure everything was wired correctly under the dash and eliminated the extra wire in the engine harness that I don't use i.e. original oil pressure and temp wires. Everything works great now. Don't really know what it was but your right about the feedback. Somewhere along the line I was getting 12v to the solenoid when I shut the engine off.
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