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Hidden Ignition Kill switch install - Best wire to put the switch on?
Hey Guys, as I invest more and more money in restoring my truck, I've been thinking that I'd like to hide a kill switch somewhere up under the dash. I would like another layer of protection incase I have to park on the street in a shady area.
I want to put a toggle on/off switch but am not sure which wire to put it inline with, any recommendations on which wire to install it on under the dash? I'm looking for the truck to be completely dead if someone tries to turn the ignition. Thanks! |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
I've toyed with the idea of using the cigarette lighter. Re-wire it as a switch, and when you push it in, all is good, but when it's popped out, no power.
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
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If you want to "kill" the entire electrical system, you'll need to attach a very heavy duty switch in either of the main battery cables. Something like this: https://www.summitracing.com/parts/qcr-55-010 |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
While I'm all for hidden kill switch's, just remember how darn easy it is to jump in and coast our trucks around the block. Without locking steering wheels and locked in park we really are vulnerable to thieves. The transit bus I drove had an interlock on it so if the back doors were left open, no way were you going to get it out of park. Would be an interesting retrofit?
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
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Figured putting in a switch would be real easy to do as long as I get the right wire. My truck has a nice big cushy spot in the garage so at least she's not on the street all night :) |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
Personally, I'd disable the coil and let the starter crank. Letting it just crank and not start doesn't tip them off that it's switched. An old truck that takes a while to fire is pretty credible.
If you could make it fire on one cylinder like the VGG plug wire swap that'd be pretty sweet, but you'd need serious copper to switch that. Sure, it's not going to keep them from rolling it onto a flatbed, but it'll baffle the bewildered. |
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Yamariv, I can't come to your truck and lay your hands on them, but if you get on your back on the floor of your truck and look under the dash, you'll find all those wires I mentioned in my first 2 suggestions. Depending on exactly which wire and where on it's circuitous route you want the switch, you may have to remove the screws holding the fuse box in place to gain access.. But, as I said, they're all there under the dash. |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
I installed four 3way switches under dash below steering column. In plain sight.
To lock, all switches to in middle position. First switch. Up or down horn comes on 2nd switch brings power in and out to 3rd switch 3 switch sends power to HEI 4 switch disables neutral safety. So it’s like a combination lock. Wiring close by minus HEI and simple to do. I coupled that with a basic alarm system with power lock actuators. You can also do the high beam relay trick. Super easy. |
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
To kill the engine you can also ground the tach lead from the coil be it an HEI or points
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
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Just drive a 67 with the 3 on the tree and a hand brake , They'll never get it out of your driveway ! :lol:
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
I know you are considering a stock truck. I agree something is better than nothing.
I have a LS conversion and aftermarket air. The Air no longer uses the blower switch as the fan speed is on a slide. I disrupted the power to the ECM with the fan switch. Nice thing is is looks all stock. Ya, the world know knows my secret. But what the heck, someone, unknown to me, filed my taxes this year. They had to know a lot. Good news it the IRS caught it before payment was made. It was a hassle to affirm my identity, and I had to file paper taxes this year. Not as bad had the IRS not caught it. Did you know the IRS allows you to have a pin. I recommend everyone get a pin and use it. Just like a kill switch, it keeps them out. BTW, the "three on the tree" is likely a better deterrent! Cheers |
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
Yes, grounding the distributor coil is better than an open circuit. The easiest way to keep the old trucks running is a wire from the battery to the coil, grounding coil or tach lead will prohibit ignition spark to engine.
Fuel cut off is also a decent deterrent. Bob |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
I like RustyPile and Rust_Never_Sleeps suggestion. I recently installed a kill switch to my 71 C10. It's an easy task.
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
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I connected the kill switch wires in between the pinkish (some call it purple) wire and the two yellow ones (one goes to the starter and the other to the distributor coil). See picture (Not mine. Credits to the creator) Hope this helps |
Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
Thank you. Although mine has the two anti-theft devices grumpy old man indicated, I plan to install some sort of back up. Since I have converted mine to HEI it may be the simple ground the tach lead.
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Re: Hidden Ignition Kill switch install - Best wire to put the switch on?
Here's some more ideas.
http://67-72chevytrucks.com/vboard/s...d.php?t=590462 http://67-72chevytrucks.com/vboard/s...d.php?t=696808 http://67-72chevytrucks.com/vboard/s...d.php?t=474293 And some these links have links also. |
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In addition to a hidden kill switch....also using a tire boot will at least slow them down. Cutting it off makes and ton of noise as does dragging the truck away.
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