Question about 1993 Ford F350
Check wiring on trailer
Posted on Sep 12, 2009
Check your ground. When weird gremlins happened that is often the case. Also it is absolutely essential when diagnosing trailer light issues to have a circuit tester (inexpensive voltmeter/ohmmeter from RadioShack) to check for current or shorts along the system.
Posted on Aug 31, 2014
If everything works when trailer is not connected it's gotta be in the truck plug or trailer
sounds like a ground was lost in the left trailer light
they do sell trailer wiring simulators (about 20 bucks) you plug em in the truck and it simulates trailer lights with little led's on it
Posted on Oct 06, 2009
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Posted on Jan 02, 2017
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