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Discussion Starter #1
Starts fine with bypassing solenoid but small wire is not engaging solenoid and no power on small wire that engages solenoid. Clutch switch replaced first and new batteries and new alternator - reason for that is - well here is the whole story. My son is 17 - good son but knows enough to really screw up while I’m at work. This is his truck so here goes. He tries to jump tractor off and hooks up wrong big arc hence new alternator and new batteries then when replacing batteries he hooks up batteries wrong then new alternator. Now it won’t start without bypassing solenoid. Solenoid probably good just not getting juice from switch. I’ve looked at fuses and link fuses and all seem to be fine. I’m looking for the reason solenoid not clicking when key moved to start positi9n. Is there a relay or fuse I’m missing ? Because I’m thinking that’s the problem just can’t find it in either fuse box. Batteries that were in it were fairly new but he got them to replace for free so he’s only spent 150. For alternator but he only got paid 200 for the job he was on when screwing all this up. He didn’t tell me about any of this until truck wouldn’t start late that evening. So this is where we are at now. Any help appreciated
 

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Discussion Starter #2
I’m sure the jump starting or the hooking batteries up wrong played a part in this problem. Batteries were good and i will mention the radio won’t play now but just had radio installed few weeks ago. Tomorrow i will run wires down where installer got power from for radio and check fuse on back of radio. When using test light small wire on solenoid has no power with switch turned to start.
 

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Have you verified all fuses with a multimeter? Is the ignition switch itself still good?

We've all been where your son is, that's how we know what we do today. Your son did it out of lack of knowledge, I screw stuff up because i'm stupid.
 

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Lol he’s not stupid and he is sick that i won’t let him drive the truck like it is. He’s not above carrying screwdriver around and raising hood each time to start it. Man couldn’t ask for a better son but i can’t help but get a little mad. We are in pretty good shape considering all the folks out of work now with COVID crap but he has to stop screwing things up. I’m all about live and learn but this is a good strong running truck and i hate to create problems since the truck already has problems. Yes the ignition switch needs replacing - sticks and you have to turn back by hand to get out of start position but i don’t think that’s the reason solenoid not getting juice to engage starter. It’s got to be a fuse somewhere other than the two fuse boxes in cab and under hood but i can’t find any other fuses. Don’t think it’s a problem with neutral switch or clutch switch. I believe it’s related to his screw up when connecting batteries up wrong.
 

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Discussion Starter #5
Yes on multimeter on fuses all fuses in both Boxes show good. Could be ignition switch but i just don’t think that’s it. Could be wrong
 

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Earlier year then my knowledge -- but, is there a start relay in the fuse box in the cab?

And yes, could be the ignition switch

Meter or test light and chase the circuit -- start at the clutch pedal switch and see if voltage is present with the key in start position
 

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He's not stupid, I am. But yes, check the fuses in the dash down by your left knee when sitting in the drivers seat.
 

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Discussion Starter #8
Yes I’ve checked at knee also. I checked fuses with meter and not just looked at them BUT reason i had a buddy of mine put the radio in and wire it was because i couldn’t get old radio to come on - he found a blown fuse was the cause. Put new radio in and replaced fuse and worked great but now no power again. I plan to call him later today and ask where he pulled juice from and check it
 

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Discussion Starter #9
I don’t consider myself stupid but i did miss the blown fuse first time around and i looked at all so i might be the jack of most trades but master of nothing but my dog !
 

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Discussion Starter #10
Maybe i haven’t missed any fuses and they’re all ok ? If fuse link in wire was bad ? Can you tell by looking - don’t think I’ve ever saw a bad one. Will it be obvious ? Is it possible for actual ignition switch under steering column be bad now ? Replacing is fairly easy and cost is 20 bucks. May try that today unless someone thinks bad idea fishing here is all
 

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Still firing the parts cannon I see ? -- why not see if there is voltage at the clutch pedal switch first ?

Fuse link wire is designed to not burn thru the insulation -- they dont want a fire
you can pull on the fuse link and see if the internal wire is broken -- the insulation will pull apart
 

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Discussion Starter #12
Ignition switch replaced and that wasn’t it !! It did firm the key position up though and you don’t have to actually turn by hand back from starting position now so money not blown for nothing. Will keep looking for blown fuse somewhere. Also the fuse in the back of radio was blown - replaced it and it comes on now but no music out of speakers 😂
 

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Discussion Starter #13
I shot barrel out on parts cannon long ago - parts places need the money to keep employees working ha Oh and would have told son to get a new solenoid if they had had it in stock All the time knowing it’s not the solenoid. I guess it’s just wishful thinking and the dread of digging deeper. Clutch switch has been replaced and has voltage Haven’t checked transmission position but info really appreciated on the in-line fuses. Gonna check them now
 

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Discussion Starter #14
Just a little update on the problem with no power to small wire to solenoid from clutch safety switch. I just ran a new wire from safety switch to solenoid and problem solved. FYI this problem stemmed from my son putting new batteries in wrong - thinking the batteries were bad and before that burning alternator up trying to jump off 90 hp tractor and hooking jumper cables up wrong !! Yes i was at work and did my phone ring ? Nope. So he also burned out the premium sound box with stereo. Bypassed it and sounds fine and starts normal now but what a cluster and i guess learning experience because he had to pay for everything replaced 😳. I didn’t trace down where wire was messed up and maybe should have but time is money and i did a good job running new wire to solenoid. All good now and I’m thinking he will call before doing stupid stuff from now on
 
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