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1999 - 2003 7.3L Power Stroke Diesel  
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Engine not cranking sometimes

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Old May 29, 2023 | 10:17 AM
  #16  
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That's a good idea. I'll have to make a trip over there and pick one up. I really appreciate everyone's help. Diagnosing the issue can be a real pain sometimes.
 
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Old May 29, 2023 | 10:19 AM
  #17  
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Originally Posted by udsuth78
If I remember correctly it goes from the ignition to the neutral safety switch, in your case a connector plugs into a jumper under the dash, then to the range selector and back up to the PCM. I recently had a similar situation and what helped me finally find the problem was a cheap signal tracer from Harbor Freight. It hooks to the circuit and sends a signal through the wire. Then a hand held wand gives an audible tone when in range. You follow along the wire until you loose the tone and there's the trouble spot. Easy as that.
Do you happen to have a link to the one you purchased? I typed in signal tracer onto their website and nothing came up.
 
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Old May 29, 2023 | 12:11 PM
  #18  
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Sure thing here it is. They list it as a cable tracker. You would think their ”algorithm” would have made the connection. I know every search I make on Google they've got just what I need, irregardless whether it's even remotely related.

https://www.harborfreight.com/cable-...caAheUEALw_wcB
 
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Old May 30, 2023 | 05:20 PM
  #19  
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Thank you. I would think so as well, especially if they want to sell products. I couldn't believe they didn't suggest anything at least.
 
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Old Jun 12, 2023 | 06:29 PM
  #20  
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Originally Posted by udsuth78
If I remember correctly it goes from the ignition to the neutral safety switch, in your case a connector plugs into a jumper under the dash, then to the range selector and back up to the PCM. I recently had a similar situation and what helped me finally find the problem was a cheap signal tracer from Harbor Freight. It hooks to the circuit and sends a signal through the wire. Then a hand held wand gives an audible tone when in range. You follow along the wire until you loose the tone and there's the trouble spot. Easy as that.
Probably a stupid question but electrical isnt my thing at all. I bought the tracer but couldnt figure exactly where to plug it up. The instructions mentioned pulling a fuse and plugging it up. Is that what you did? If so, which fuse did you plug up to? I've been looking through wiring diagrams but I'm a little lost with them.
 
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Old Jun 12, 2023 | 11:30 PM
  #21  
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If I remember right I unhooked the connector from the ignition switch and hooked the tracker to the ignition wire there. Then it was just turning on the wand and tuning the sensitivity so I could get a reading but have it low enough I could tell where it was coming and going.
 
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Old Jun 13, 2023 | 07:11 PM
  #22  
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Originally Posted by udsuth78
If I remember right I unhooked the connector from the ignition switch and hooked the tracker to the ignition wire there. Then it was just turning on the wand and tuning the sensitivity so I could get a reading but have it low enough I could tell where it was coming and going.
Do you know where exactly that is? I looked around the ignition switch and didnt see a connector for it, just wires running into it.
 
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Old Jun 13, 2023 | 07:49 PM
  #23  
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Underside of the column left side. Will have a 8 or 10 mm bolt securing it to the switch. The switch is a big blocky sob about the size of a deck of cards.
 
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