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Old 06-25-2022, 05:12 AM   #5
flybouy
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Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,714
Quote:
Originally Posted by fdhoward View Post
Not sure about why things aren’t working. Can’t put a fuse in, it blows instantly. Yes I have a volt meter but not sure where to start. Checked all connection in electrical connection box on the tongue that connects to the truck pigtail. Can’t find anything there.
I would begin by identifying every device on that #2 fuse. You do that by checking to see what's not working. Then go to each device and disconnect the wires. In the fuse box set your meter to ohms and place one lead on the #2 fuse wire going out and the other on the ground. If it reads infinity then the wire is OK. Connect the devices one at a time and repeat the test. If you get a zero resistance when you connect and test a device that's where the issue is.

Edit/add: You can also get a circuit breaker fuse of the same amperage and do the test with the circuit breaker. When the breaker trips after connecting the power you have found the culprit.
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2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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