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The starter was slow turning right after I did the incorrect shut down, so I replaced the pcb box. Now its not even turning over, which is why I was thinking that the pcb box was faulty. Is there still a possibility that its a bad starter or could the used pxb box be culprit? I'm going to do the...

Perfect, I'll give this a try for sure. If the truck starts with this procedure does it mean the pcb is bad then? And if not the starter is the culprit? I apologize if I am asking dumb questions, but I am wanting to be positive that I am understanding correctly.

I just bought a load tester last week, I will put it on the batteries to verify maps for sure as well. Thanks.

When I jump the two large pins, would I operate the battery switch and ignition switch the same as if the pcb harness plug was hooked up? I'm assuming yes, but want to verify it before I do. As I don't want to do something that will create additional problems. Thanks.

Tested the batteries to be positive that they weren't down or drained. Both tested in the 12.39 range, so I am guessing that I can rule them out of the equation. I know they could be a little higher, but certainly should have enough charge to turn over the truck.

So I replaced my pcb box with a used take off unit that I bought while in the process of rebuilding my old pcb. The dash lights all come on when I operate the light dash switch. But the truck doesn't even turn over with the battery switch on and operating the ignition switch. Batteries were...

Some typos in my last description of wire colors to pins Yellow wire-left small upper pin Red wire-right small upper pin Center small pin-no wire Orange wire-left medium pin Small black wire-right medium pin Two large black wires two bottom large pins If that makes sense. Thanks.

Okay, I'll get them ordered right away and get them on the way. Once I get the diodes from Amazon and wiring layout from you I will be ready to tackle it for sure. I am very thankful for all your advice on this. Thank you very much. If this doesn't teach me to be more attentive when shutting...

I can get them from Amazon overnight with my prime shipping. What amp do I need? They show everything from 1 amp to 4 amp in the 20 pack. I'm guessing the higher amp ones, but not positive. Thanks.

Yellow wire-left small upper pin Red air-tight small upper pin Center small pin-no wire Orange wire-left medium pin Black small gauge wire-right medium pin Two large black wires-two lower large lower pins. Where should I get the 600v diodes? Would the jumper power feed replacement go to the new...

Got the box open, I guess my next question would be, my truck is an abs system truck now. Do I need to replace what is the upper solenoid with the same style as the lower solenoid? Or do I need to get a replacement style upper to put back in, not knowing if just one or both is going out? Or do I...

Thank you for the response and video. Headed to my shop now to get it opened up.

Well I got the pcb pulled off and it looks nothing like the one shown being disassembled and rebuilt. I'm not sure if it is even able to be rebuilt. Its literally a solid box other than where the plug unit threads into place. Any thoughts on what it takes to get it done or replacement unit for...

I ordered the solenoids from Amazon prime, the parts are on their way and are supposed to be here tomorrow.

Thank you very much simp5782, that's exactly what I was needing. Looks like I will be ordering the parts and rebuilding the pcb unit. Now I just need to find a second unit to rebuild it for a spare.

How How does one go about rebuilding the pcb box? I can't believe that I accidentally screwed up and shut down the battery switch first. Now the truck is struggling to start, and not turning over strong. Dragging to start. I was driving it to get several yards of soil, shut it down...

I'll definitely have to get back under it and double check the tank bottoms. Lol. I really hope that I am leak free in the tank bottom areas.

Finally got a warm, dry and quiet day to track down the leaks on the 5 ton air system. I say leaks, not leak because it had six leaks that I have found so far. Hopefully that's all of them. Three were the plastic line fittings at the tanks under the passenger step. Two were the fittings into the...

That's very sound advice. From what I can gather, parts not only cost, but they are generally very large, heavy and well torqued on.

Mine is the nhc250 engine. I'll definitely have to be sure to keep it under the redline and not lug it either.