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1990 Oldsmobile Royale 3800

Olds 88The right turn signal will not work with headlights on, but with headlights on it flashes 4 ways. What could it be?


RESPONSE

The most likely cause would be some kind of electrical issue most likely in the wiring harness. Could also be a loose ground wire.

trun signal wiring diagram 1990 Oldsmobile 88