Question about 1992 Buick LeSabre

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Where is blinkers relay and how to get to it.

Very slow weak left blinker i think i need to change relay but i cant find it.I think it is high up under dashboard,if so how do i get to it,and how do i change it.thankyou

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  • Richard Scordino May 11, 2010

    turn the directional on so it makes noise, follow the noise to the flasher. I locate this stuff that way whenever I get a different vehicle...far easier than finding a silent one after it fails!



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  • 111 Answers

Try looking on the driver's side under the hood, next to the firewall.

Posted on May 22, 2009


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Left blinker is NOT working correctly

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With the left blinker on check for power on the black wire. If there is power than the ground is bad on that wire. You will need to trace it to its grounding point making sure there is no corrosion in the wire, the wire is not broken, and the ground is clean.

If that checks out you may have a bad socket. I think the sockets on these plug into the harness. You can try swapping the socket to the other side and see if the problem follows.

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The right blinker issue sounds like you have one bulb out either front or rear check them both. The left blinker issue sounds like either bulbs(both out) or fuse, or worst case blinker switch has gone bad on left turn only so not picking up the signal.

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Left blinker blinks faster than the right. which the back left blinker does not work and front left blinks really fast.Right blinker works normal?

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Ok this a way different problem than i thought it was first thing to look at is the relays and fuses and connectors to make sure they are not loose, pull them out and reconnect them. Engine running = vibration. Engine not running = no vibration. If thats good your left light blinker may be shorted to your constant power. Your right blinker may have an intermittent open. I looked at turn signal flashers online they are about $10 each, maybe swap em out then return if it does not fix it. It really sounds like a wiring problem though so look at the back side of where the light is connector and tell me what you find if anything
Good luck

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You probably have found by now that it isn't a fuse problem.

Your car almost certainly uses a thermal blinker relay and it has failed.
Normally under the dashboard, they are typically a cylindrical aluminum can about 1 1/4" in diameter and ~ 2" tall.

They aren't expensive (<$10) and not tough to replace.

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