No start, Need electrical guru help |
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No start, Need electrical guru help |
DickSteinkamp |
Aug 15 2019, 06:13 PM
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#1
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Senior Member Group: Members Posts: 500 Joined: 27-February 17 From: Bellingham, WA Member No.: 20,876 Region Association: None |
1976. V8 Conversion, but the starter wiring is (near) stock.
It did this once in the past, and has done it again. Turn the key to the start position, hear a relay click under the dash, but the starter doesn't engage and spin. If I jump the big cable at the starter to the terminal on the solenoid that the brown wire is connected to, the starter spins and starts the car. The last time it healed itself after the car sat for a couple of hours. It hasn't been that long now, but I need to find what the problem is and fix it. I have jumpered around the original seat belt interconnect. Ideas? (BTW, electricity is magic to me so keep it simple (IMG:style_emoticons/default/smile.gif) ) |
Chris H. |
Aug 16 2019, 08:49 AM
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#2
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Senior Member Group: Members Posts: 4,032 Joined: 2-January 03 From: Chicago 'burbs Member No.: 73 Region Association: Upper MidWest |
Sounds like it's most likely the switch in the steering column, because you should get 12+ volts on the trigger wire when you turn the key. The column switch SUCKS to change. You have to take the column out and apart. A telltale confirmation: sometimes if you wiggle the key a bit and try multiple times it will engage the starter eventually.
You could also add a starter button instead if you want since the replacement switches aren't that great either. Also a theft deterrent. Here's a diagram someone else on the site drew a while ago... |
DickSteinkamp |
Aug 16 2019, 09:02 AM
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#3
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Senior Member Group: Members Posts: 500 Joined: 27-February 17 From: Bellingham, WA Member No.: 20,876 Region Association: None |
You could also add a starter button instead if you want since the replacement switches aren't that great either. Also a theft deterrent. Thanks. I have thought about doing that....but only if all else fails. I have tried jiggling the key. No joy. I'm hoping Dominic's fix works. If not, I will probably start tracing from the key switch to the starter to hopefully find out where the current flow stops. Since I can hear that relay clicking when I turn the key to the start position, it seems like the ignition switch may not be the issue. |
lierofox |
Aug 16 2019, 10:05 AM
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#4
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Member Group: Members Posts: 256 Joined: 23-June 15 From: Paso Robles, CA Member No.: 18,880 Region Association: Southern California |
Thanks. I have thought about doing that....but only if all else fails. I have tried jiggling the key. No joy. I'm hoping Dominic's fix works. If not, I will probably start tracing from the key switch to the starter to hopefully find out where the current flow stops. Since I can hear that relay clicking when I turn the key to the start position, it seems like the ignition switch may not be the issue. Was there a relay added after the conversion? You mentioned in the first post that there was a sound under the dash and I kinda glanced over it, but I can't think of any relay that would be getting actuated under the dash that has to do with the starter circuit... It should just be fog light relay, headlight dimmer, turn signal/hazard relay, horn relay, and...I think the blower motor relay? (Though maybe what you're hearing is the sound of those turning off instead of on.) |
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