Making good progress
Thanks for following up.Updates?
Thanks man. This is actually the exact picture I found on the internet and used as well. It's helpful for others that you posted it here.Nice progress on your truck!
Here's an image that may help your wiring woes. (The numbers are what's important; use 30 for your hot from the battery and 85 to the chassis ground. 86 comes from whatever it is you're using to trigger the component you're trying to energize [usually a switch] and 87 is used for energizing the component itself.):
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I'm aware, was checking if anyone has seen that valve before and knows what should go to it.That’s not factory
Haha, thank you for your detailed perspective, I will see how sane or not sane I feel like getting in the spring.if you really like you sanity, i'd save up for a unbutchered OEM harness. having been around towtrucks for the last 30 years, yours has to be the worst i've seen. if you are handy with wiring, i'd build three systems new and eliminate what you currently have. one. lighting circuit. aka. constant on. two, switched on. stuff that needs an on/off circuit. and lastly, a starter energize button. I see you have that already.
I've brought home towtrucks with electrical systems that have been completely burned up at the column sliding switch or at the headlight switch. I pulled all the main power wire off the battery to the solenoid and put one wire to the injection pump and a emergency lighting harness. I didn't have to account for gauges since I knew the damn thing has been running for the last half million miles, and I didn't need working windshield wipers since half the windshield was burn damaged. if you are worried about the lack of gauges, put in a aftermarket oil pressure and water temp for the winter. these are the last of the literal one-wire motors. you only need to energize the pump to run. cut your losses on the mess and start new rather than guess on the abortion that's in front of you currently.
I haven’t seen it on one of these trucks, looks like an aftermaket pressure switch, maybe they put a different connector on the line for low vacuum pressure to hook up to that?I'm aware, was checking if anyone has seen that valve before and knows what should go to it.
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