My 99 K1500, 60,000 mi, original owner, started acting funny. When turn
signals are on, and you apply the brakes, the turn signals "freeze up" until
the brake is let off. Is there a common relay that's easy to get to that
could be causing this? I hate to take it to the dealer, seems everytime
they tear something apart some new problem pops up.
there's your hazard flasher and ur turn signal flasher; i have a 90 model
and both are located up under the dash in front of the driver; it may be
different in the 99; check your ground wires(trailer wiring, rear tail light
strips, etc). Mine used to blink fine until i but on the brakes and it would
go super fast, come to find out it was just a blinker bulb went bad.
usually a bad ground in one of the rear light sockets' wiring.
when you hit the brakes, the brake lamp voltage back-feeds to th turn signal
supply, thru both filaments
take off the covers, and hit the brakes
the one with the bad ground will cause the smaller filament in the lamp to
glow faintly when the larger one comes on
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