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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

funny brake light problem

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Old Aug 22, 2013 | 10:38 PM
  #1  
mista_shrpnl's Avatar
mista_shrpnl
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funny brake light problem

been chasing a brakelight issue for a while..please help! Truck is a 91 f250 ext cab 7.4 460 2wd

Ive searched and my problem seems to be..odd.

running lights and turn signals work. one brake light comes on IF my other turn signal comes on ( driver brake pass flasher) but not vice versa. flashers do not come on in the back, but do up front.

Previous owner horridly installed a brake controller/6 pin and a flat 4. Ive chased/cut those wires. from what im assuming is the original stock pig tail for the trailer lights ( 4 pin, green and yellow wire from pigtail correspond with blinkers) unsure what other two power.

Please help!! Im all confused.
 

Last edited by mista_shrpnl; Aug 22, 2013 at 10:40 PM. Reason: forgot stuff
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Old Aug 23, 2013 | 03:35 AM
  #2  
Krisverde's Avatar
Krisverde
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From: Mesa, AZ
Perhaps the turn signal switch is failing. I believe that's all tied in together.
 
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