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so, I've not dove in the electrics yet with my recently purchased '79. I just got it driving today. I also noticed a strange thing. When I hit the brakes, all the parking lights come on at the same time. before I waste time tracking this down, ANY ideas? the blinkers work fine, they just flash like normal. but every light on the parking circuit light up with the brakes.
Check for a short in the taillight circuit - possibly the harness at the rear plug under the bed or at the back of the cab.
has anyone added a tow harness...wired incorrect?
And check your fuse box. Maybe someone played amacha leg-trick-shun and bridged the circuit at the fuse box (god knows why but when it comes to wiring, every retard is an expert - and these trucks have really simple wiring circuits :shakehead:)
okay, It turned out someone stuck an 1156 bulb in the stoplight socket. very effective bridge of the circuit. a new 1157 cost me a buck and it's fixed.
Something simple. Instant wiring gremlin - just add wrong globe!