1999 - 2003 7.3L Power Stroke Diesel

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Electrical issue

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Old

Apr 13, 2025 | 12:36 PM

#1

Monzadu

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4th Gear

Joined: Mar 2020

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Electrical issue

I have a 1999 ford f250 with a 7.3 diesel I am I. The process of changing the cab and frame I just got it running and now I am having an issue where when it is running and I go to put it into four wheel drive all the gages stop working and the dome light and top brake light flash. I have checked all the grounds and all the sensors making sure it is grounded and everything is plugged in correctly I am at a loss as of this point and any suggestions would pe appreciated thanks

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Old

Apr 14, 2025 | 06:06 AM

#2

pvdiag

Tuned

Joined: Apr 2004

Posts: 425

Likes: 72

From: Aroostook County, Maine

Guessing you have electronic shift on the fly. I would revisit the grounding. Does the 4wd engage and work when this happens?

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Old

Apr 14, 2025 | 08:23 AM

#3

Monzadu

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4th Gear

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No it is a manual shift

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Old

Apr 14, 2025 | 11:53 AM

#4

pvdiag

Tuned

Joined: Apr 2004

Posts: 425

Likes: 72

From: Aroostook County, Maine

Possible that you have some wiring that gets pinched by the shift lever? Specifically the wiring the provide 4wd feedback to the dash panel.

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Old

Apr 14, 2025 | 10:01 PM

#5

Monzadu

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4th Gear

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I have been over that as well it also happened when the 4*4 lever wasn’t even on the truck yet because I took it out of 4*4 with a pair of pliers

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