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tail lights, third brake light, licence plate lights reverse lights

1K views 2 replies 3 participants last post by  bam_bam1111 
#1 ·
i have a 2000 ford f250. when i hit the blinker left or right the third brake light and both blinker will flash. the license plate lights don't work and the reverse lights dont work all the bulbs are good. the daytime running lights and brake lights work. i checked fuse. all of the lights work in the front as they should. the 4 ways work as they should and the third brake light does not blink when 4 ways ar on i looked for ground problems and chafed wires did not find any did not look behind fuel tank because its 1/2 full and haven't wanted to drop it.
thanks for the help.
charlie
 
#3 ·
Because it's your 3rd brake light flashing I'd start with that- find a wiring cartoon that shows the third brake light and where in the harness that separates from the tail lights. It's got to be backfeeding through a ground or something. Wiring gremlins...Mean little critters.
 
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