Question about 1990 Buick LeSabre

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Left turn signal doesn't flash.

Replaced bulb. It lights up when I switch to left turn signal. However doesn't flash. Both lights flash when using Hazard switch.

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  • 299 Answers

There is a flasher under the dash put your 4 ways on and listen for the tick noise find the flasher unit under dash area driver side there is two one for the 4 ways and 1 for turn signals now that you have found them turn on working signal touch the flasher unit you will feel it pulse and hear the noise when you have the one pulseing on working signal this will need replacing can also be in fuse area have a good day

Posted on Nov 22, 2014

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Posted on Jan 02, 2017

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SOURCE: front Left turn signal lamp doesnt work

check wire contacts in socket. If they are melted change the socket
It can be removed easily just unplug the wires.
I have replaced both front sockets on my 1999 Buick Century.
Hope this helps.
Ron

Posted on Aug 08, 2008

elstretchie
  • 140 Answers

SOURCE: Left turn signals won't flash, Right side works fine. Replaced front and rear turn bulbs (rear was burned out). Bulbs come on fine on the left side, they just won't flash.

Gday mate, we had a problem with another late model vehicle similar to that, the bulb that was put into the reverse light was not exact brand product ( ohmage was slightly wrong ) and fowled up computer, correct bulb in place and disconnect battery to reset K A M ( keep alive memory) problem solved, BEWARE, some vehicles cannot have KAM reset except for dealer computer tethered reboot , just try putting the factory correct bulb(s) in and see how it goes, geoff. hope this helped.

Posted on Feb 11, 2012

Cummins24v
  • 4 Answers

SOURCE: No turn signals

Have you tried replacing the flasher? They're typically round, and with the fuses under/in the dash. They probably cost 10-15 bucks, usually available at your local autoparts store.

Posted on Nov 24, 2008

cecandtylers
  • 4 Answers

SOURCE: Right turn signal not flashing on 1992 Buick LeSabre

Back in the late 80's early 90's GM's turn signal switch in would get loose afetr some use and one side or the other turnsignals wouldn't flash or only the third bake light worked and/ or you couldn't flip your headlights to high beams and have them stay on without holding the turn signal arm back. Perhaps if turnining the bulb over as Mr. Scary suggested proves fruitless. and you may explore that option. Get an assistant and have him watch your blinkers tailights etc. and turn your blinker on and push the blinker arm firmly toward the dash and see if that resolves your problem.

Posted on May 02, 2009

red54eyejp
  • 25 Answers

SOURCE: front driver side turn signal light doesn't flash

replace flasher......usually located in fuse block area...listen in this area....select passenger side ...then select driver side...you can hear flasher clicking...you have seperate flashers for each...FLASHERS are small cubes plugged into fuse block....probable bad driverside flasher

Posted on May 09, 2009

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I removed bulbs, checked all sockets & noticed that one had some rust/oxidation- obvious bad connection.
I sprayed it with some PB blaster (or use wd40 or silicone), wiped it out & replaced bulb. Solved the prob. Hope it works for u!

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