2011 6.7 HAS NO ELECTRICAL POWER

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Jan 12, 2023 | 06:23 AM

OHBandit

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3rd Gear

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2011 6.7 HAS NO ELECTRICAL POWER

I have a 2011 F350 6.7. Owned it for 7 years now. On the way to work this morning while driving everything went dead for about 2 seconds and truck just came back to life. Lucky I was 200 yards from pulling in the parking lot. Backed the truck in the parking spot and shut off and took the key out and opened the door. Closed the door, restarted the truck and all worked fine. Turned truck off again, opened door and put key back in ignition to restart third time and it's deader than a hammer. No power to anything other than the 12V cig lighter sockets. No power locks, windows, seats, dome lights no anything! Checked batteries and both show 12.8 volts. Now what?

Jan 12, 2023 | 07:01 AM

ToMang07

Logistics Pro

Joined: May 2011

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From: Maine

Well, time to start chasing wires. Check the main power cables to the batteries. Grounds. Fuses. Then move to the BJB and start checking major harnesses. Sounds like a harness got damaged or loose to me.

Jan 12, 2023 | 07:52 AM

JoeUser

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Joined: Oct 2022

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From: Dallas Metroplex

How old are the batteries? Start there, with their condition (load tested). Also, check the cables and ends; any corrosion (between the battery posts and cables) or loose connections (such as the ground cable to body).

I've experienced the same thing with other vehicles in the past, when it turned out to be a bad ground (in one case a broken negative cable, inside the sleeve).

Jan 12, 2023 | 07:56 AM

OHBandit

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3rd Gear

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Yep have to start chasing wires.

Jan 12, 2023 | 10:21 AM

lynnmor

More Turbo

Joined: Dec 2011

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I believe that there were problems reported with a connector in the vicinity of the parking brake. Do some searching on here.

Jan 13, 2023 | 05:23 AM

senix

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Joined: Aug 2008

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From: Frederick, MD

also check the wiring harness that goes underneath the engine and crosses over to the other side.

Jan 16, 2023 | 04:21 PM

OHBandit

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Fixed!

Problem fixed. Removed kick plate on passenger side to get access to the fuse panel. Found a large red wire that feeds something just in front and under that fuse panel had a loose connection. Could see where it was oxidized and the connection was not tight. Cleaned it up and crimped the connectors back in and she is back to life.