4x4 #35 fuse keeps blowin

40

Asked by Aug 14, 2013 at 07:34 PM about the 2007 Ford F-250 Super Duty

Question type: Maintenance & Repair

4 wheel drive wasn't working pulled fuse box cover seen ten amp fuse was blown I put
a thirty amp fuse in it worked for a little bit then blew again it only happens when u turn
the switch from 2 wheel to 4 high it blows would this mean there's a bad ground goin to
the transfer case

1 Answer

71,725

Never, EVER, put a higher amperage fuse in than what is supposed to be in there. Fuses are a protection device designed to prevent further damage to components and wiring. They also prevent a fire if a short develops. You definitely have a short in the system. Start by checking the switch, then inspect the wiring and connectors at and near the transfer case. Use ONLY the 10 amp fuse that's supposed to be in there!! HTH. -Jim

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