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90 Truck Flasher Relay Hazards work no Blinkers

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Old 09-26-2008, 04:14 AM
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90 Truck Flasher Relay Hazards work no Blinkers

Is there only one relay for this truck? I have no blinker lights but my hazards lights work. I found one near the left of steering column when I turn on my hazards this clicks fine. If I turn on my blinkers the same relay buzzes sometimes but no lights blinking. I saw a green relay on the fuse block not sure what that was.
Old 09-26-2008, 04:26 AM
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mine did that few years ago. I had to replace the entire switch
Old 09-26-2008, 07:37 AM
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There is only one flasher relay, if the hazard lights are working then the relay is fine. Do all the bulbs work. The turn signals and hazard lights have seperate fuses, check the one for the turn signals. And like jsn_stockard said it could be the switch.
Old 09-26-2008, 10:01 AM
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Are you taking about the switch in the steering column? What is wierd I am getting continuity on all four wires! I can touch any of the 4 wires on the front of the truck and they all have continuity. Plus like I said when I turn on the blinker the relay makes a buzzing sound like its trying to click.

Thanks!
Old 09-26-2008, 11:51 AM
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Originally Posted by dip1
Are you taking about the switch in the steering column?
Yes, the turn signal switch operates the flasher relay when the hazards are off. If the switch isn't making good contact then that could be the problem.
Old 10-12-2008, 08:11 AM
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Mine does the exact same thing i cant figure it out
Old 10-12-2008, 08:58 AM
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I've had luck with other vehicles just taking apart the switch and cleaning the contacts....sometimes the gunk just builds up in there and starts to mess with things.
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