No power
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No power
So I have a "new" truck. 1992 F250 7.3 IDI. No power anywhere. I am guessing a fusible link somewhere. Does anyone have a wiring diagram for this or know where I should start looking?
Thanks,
Seth
Thanks,
Seth
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New User
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We had 2 good batteries and it was cranking when jumping the start solenoid (for compression test). No power anywhere. There are 2 cube fuses on the firewall above the starter relay, but they both checked out. All fuses in the engine compartment checked out. Literally nothing is lighting up.
Your truck reminds me of a guy up here that has 2 six door F350s. Both 2001ish 7.3 powerstrokes.
Your truck reminds me of a guy up here that has 2 six door F350s. Both 2001ish 7.3 powerstrokes.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
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From: Kentucky
If the fuses are good then go to the ground/negative side of the power equation. Verify the negative battery terminal connection is clean and tight. Look closely to see if corrosion has gotten underneath the outer sheath. Temporarily use a jumper cable between the battery negative terminal and the engine block. If power comes back you have a bad main ground.
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New User
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If the fuses are good then go to the ground/negative side of the power equation. Verify the negative battery terminal connection is clean and tight. Look closely to see if corrosion has gotten underneath the outer sheath. Temporarily use a jumper cable between the battery negative terminal and the engine block. If power comes back you have a bad main ground.
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I was looking for them and cannot find them. Any idea what color wires they are on? I know there should be 2 on the yellow wires going into the glow plug solenoid as well.
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Found it hidden in the wire loom. Must have been replaced at some point in the past. Thing did all.sprts of craziness when I lit it up though. Flashers won't shut off. No clicking on the starter solenoid when I turn the key. When I turn the key the odometer shuts off. May just have a parts truck at this point (which is what I was anticipating anyway).
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Trailering
Joined: Sep 2021
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From: Millington TN
Found it hidden in the wire loom. Must have been replaced at some point in the past. Thing did all.sprts of craziness when I lit it up though. Flashers won't shut off. No clicking on the starter solenoid when I turn the key. When I turn the key the odometer shuts off. May just have a parts truck at this point (which is what I was anticipating anyway).
I am just a newbie and the folks on FTE help me a lot with troubleshooting.
Cargo Master
Joined: Jan 2004
Posts: 3,118
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From: South Dakota
If you turn the key and lose all power, start by cleaning all the battery POST to battery CABLE connections, make sure the connections are shiny clean and make sure they tighten up properly.
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