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Electrical issues w/ 7 prong- 2001 F-150

eyeguy1

By eyeguy1
in Automotive Information Sharing

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eyeguy1 Apprentice

eyeguy1

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Looking for some quick advice- I am having problems with my 7 and 4 prong hookup on the truck for trailer lights. Has never worked correctly- When I plug into any trailer my lights work, and my brakes work- my signals make both my truck tail lights flash at the same time as well as both trailer lights flash. My signals dont work at all if my lights are on or I am stepping on the brake. I checked and it is grounded- do I need to have my 7 prong replaced? The truck came with trailer tow package so it looks to be done in the factory. Any ideas would be appreciated.

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Jeremy airjer W Grand Master

Jeremy airjer W

Posted
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Sounds like your truck is not grounded. If it is factory wiring I would start by checking the connectors near the 7 pin for either corroded pins or incompletely connected. Both are common with fords. If the pin is corroded you can bypass the wire around the connector.

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