Question about Ford F-350
The 30 amp mini fuse controls the PCM power relay along with the ignition coils on plugs (COPs) . The problem is most likely in the COP wiring having a short.Given that you've developed a skip in the engine. Visually check the wire harnesses to the COPs for damage or breaks in the covering.See if you can retrieve the fault codes in the PCM to isolate which cylinders are skipping.This will help localize the wiring issue.
Like with any short to ground in the wiring,it may take some time to pinpoint the fault. Using a short tester in the 30 amp fuse socket and wiggling the harnesses may also help find the problem.
Let me know, if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
Posted on Nov 16, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 15, 2016 | Cars & Trucks
Nov 26, 2012 | 2001 Ford F350 Super Duty SuperCab
Mar 17, 2012 | Cars & Trucks
Feb 22, 2010 | 2000 Ford F350 Super Duty Super Cab
Jan 13, 2010 | 1999 Ford Super Duty F 450
Jan 06, 2010 | 2002 Ford F350 Super Duty DRW Reg. Cab
Dec 27, 2009 | 2000 Ford F350 Super Duty Super Cab
40 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: