I have a 1990 Buick Lesabre Custom, it cus off on me sometimes when I come to a stop. When I turn the corner it looses it speed like it's running out of gas. When I press the accelerator it, jerks and jersks til I let off the accelerator. I have had the spark plugs, spark plug wires and the air filter changed and nothing changed still the same proble.
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We recently worked on a buick century with the same problem. we replaced the spark plugs and made sure the spark plug wires where on their tight and it ran like new. i hope this helps. BE CAREFUL AND DRIVE SAFE.
The speed sensors will not fix it. This is something that these cars will do in hot weather. The instrument cluster need to be removed and the contacts from the printed circuit to the connector need to be cleaned. Over time they will lose contact and affect the fuel gauge or speedometer. You may have to replace the speedo cluster. Sometimes if you hit the dash just above the fuel gauge it will start working too. Been there done that, fixed mine as the printed circuit was coming apart at the harness connector.
dont know what the code are w/out looking them up however i do know that is a common problem when ignition coils or 1 ign coil goes bad. or distributor shaft wears out, which i dont think 92 buicks have. your 92 buick should be ign. coils . ignition coils need tested at a auto part store.most are free test call them to make sure.
if you can turn the serpentine belt either direction by hand at all you probably need a harmonic balancer..or just look in the passenger wheelwell at the h/balencer and see if the rubber is cracked all the way around.. just fixed one with that issue
did you clean the idle speed control air bypass valve?, u do this by spraying carb spray into the intake while the engine is held at hi idle so it won't stall, use up about half the can, then shut down and disconnect battery for 5 minutes to reset system idle learn, drive the car for a few days and let me know if the problem is fixed.
You will need to include more information. !. Are you referring to the turn blub in the dash or the bluds mounted in the body of the car. If in the body of the car, you need to indicate whether it is front or rear.?
If the rear, open the trunk, and in the corner nearest the tail light you will see a cloth like material that can be pulled back, which will uncover the tail light assembly. From there you can remove the blub and holder by turning it to the left or right, pull it out and remove the blub.
I had the same problem with my 89 Buick Le sabre. It turned out that I had to replace the computer. It was giving the wrong signals and cutting off the fuel. My engine light came on each time it happened. Since the computer was changed it has run like a charm. It cost about $500.
Also when they ran the tests for the eng light data the computer was giving the wrong info and so many of the wrong parts were first replaced.