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Old 09-29-2016, 10:44 AM   #1
bcsman
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Location: Capac, Michigan
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Default 93 Club Solenoid Grounding Question

I have been having starting and charging issues for awhile now and discovered something I have a question on. My solenoid, which says Club Car on it, has been failing to energize to jump voltage across for starting or charging. I thought I would tap on it to see if I could free the contacts and it started. Now the odd part, all I have to do it push on any part of it with the rubber end of a hammer and away it goes. I'm looking at how it is attached to the box and the whole bottom of the solenoid is metal. But it's all plastic where it's screwed down and can't see how it would be grounded to anything. Should there be some ground strap or wire that grounds it? I could run a jumper over to where the voltage regulator is mounted as that is attached to a ground shield. Just can't see where the solenoid gets any grounding from my viewpoint and of course ground is a KEY word in electronics. Thanks for any advice...
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Old 09-29-2016, 12:08 PM   #2
meimk
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Default Re: 93 Club Solenoid Grounding Question

It grounds through the small orange wire. Here's how it's supposed to work: the control circuit gets + from the small blue wire when the ignition key switch is "on". The ground path goes on that small orange wire through the upper micro switch in that control box (pedal position) and on to the rearward micro switch at the shifter (gear position) and on to chassis ground.
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Old 09-29-2016, 12:49 PM   #3
bcsman
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Default Re: 93 Club Solenoid Grounding Question

Well I checked the solenoid when removed and works as advertised. Measured ohms across large terminals and with a battery charger placed 12v and ground leads to small terminals. Heard the click and ohms went from infinity to .2 ohms. Cleaned all terminals and wire connections and reinstalled. Same same. This is in maintenance mode. With key on battery voltage on 1 large terminal and both small terminals, blue and orange. With pedal pushed voltage stays on all 3 terminals. So I guess I need to chase why I'm not getting a ground on the orange post. Just strange how I can get the starter to spin when I push on the solenoid with the rubber end of a hammer. So with things working I should be able to measure ground on the orange terminal with key on and pedal pushed?? Can I run a jumper wire from orange terminal to ground and check??
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Old 09-29-2016, 01:09 PM   #4
bcsman
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Default Re: 93 Club Solenoid Grounding Question

Seem to have stumbled onto something, the black wire on the micro switch up by the gear shifter when disconnected shows 3 mega ohms. That's supposed to be my ground I believe. Have to check to see where it connects and see why it is reading so high.
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Old 09-29-2016, 03:07 PM   #5
bcsman
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Default Re: 93 Club Solenoid Grounding Question

Well life is good, all fixed up. Found a bad ground in the solenoid-regulator box. The solenoid and regulator are grounded to a post that attaches to a strip that is bolted to the frame. I had tried a few weeks ago to remove that bolt but the bolt head is circular with nothing to grab with and just spun so I left it. If I measured from that bolt to battery ground it was a short but if I moved to anywhere on that strip it measured 3.5 mega ohms. So I made a ground wire going from the post the solenoid-regulator grounds attached to and ran to the bolt for the battery ground. And walla starts just like it should and double walla, the charging system is now working correctly. Have had those issues for months.

Many thanks to this forum and especially meimk!!!
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