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Old 03-08-2013, 05:55 AM
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ghost electrical draw

hello i was wondering how to shut down the computer on my 2000 f250 7.3 diesel crew cab so i can work with the door open in order to pull fuses while looking for a electrical draw wich will kill my batteries within 1 or 2 days depending how cold it is thanks
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Old 03-08-2013, 06:29 AM
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No need. With everything off, including hood light, cargo light, and interior lights, pull fuses until you see a gain. When you see a gain, research that circuit and see if it is the culprit. Repeat until all circuits are figured.
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Old 03-08-2013, 07:48 AM
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Your computer's not the problem...

It would take a more substantial draw to kill batteries in just 2 days (IF your batteries & charging system are OK).

I would start with pulling the fuses of the most "likely suspects", that have caused this problem in our trucks for others, like;

The Radio

The Instrument Cluster

Alternator (remove the wires from it)

From there, it's gets dodgy trying to determine what's an acceptable draw, from where, and what not (you're supposed to have a draw from several circuits) To add to this complication, that draw diminishes with time as systems shut-down. So, what's acceptable in the first 10 mins is Not after 30...

Hopefully it's something you find with one of those 3 likely culprits.
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Old 03-08-2013, 07:50 AM
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Quote:
Originally Posted by Macon View Post
No need. With everything off, including hood light, cargo light, and interior lights, pull fuses until you see a gain. When you see a gain, research that circuit and see if it is the culprit. Repeat until all circuits are figured.
sorry i don`t understand what you are saying, i want to pull fuses inside the cab with the door open and the truck asleep so when i pull a fuse i should see a drop in amp if that is my prob circuit
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Old 03-08-2013, 09:04 AM
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The interior lights time out after a few minutes. Open a door and leave the key off, and the lights will go out. Something like 5-10 minutes. Never put a watch to it. A drop in amps is the gain I was talking about.
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Old 03-08-2013, 05:55 PM
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My truck had the same issue. I found 2 problems. Windshield leaked solved my battery drain when raining, and I turn the key back to accessory then forward when I shut it off. The Something is worn in it to when I turn it off it is right at the edge of still being on and I would go out and the radio would be on. Once I started turning the key back past off then back forward to off the battery drain (finding stuff on) stopped.
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