I had the same problem check the crank shaft position sensor i payed maybe 25 bucks for one and its not all that hard to change with the right tools.
I have a 1999 regal LS. The engine would stop at random times in traffic but restart and run again. I had the car in the shop for weeks before the problem was found. I do not know the exact parts replaced but the electrical problem was in the area of the ignition switch. The car has run great for years. Louisville, KY. 40220
what will cause a transmission in a 1992 buick lasebre to shrudderas and stall engine
It actually could be some type of sensor such as the o2 sensor. Having a fried sensor can actually send mixed signals to your ecu which will make the car die or shut off.
Have engine computer tested
Seventh generation Buick LeSabres are electronically limited to a top speed of 108. The engine won't shut off, it just doesn't get any faster.
Had same problem on my 03. Replaced the fuel and air filter and had plugs replaced. Ran like new after. Dont know which its was but a place to start.
Usually a sighn of bad alternator.
First guess would be the pick up coil in the distributor
time for a major tune up
it could be the main assembly relay under the drivers kickpanel
when the sterring wheel is turned sharply to park, the engine shuts off
fuel pumps about to go out -or more likely your electronic control module is failing.