How does it not start? is it cranking? Could be many things, battery, starter, etc.
Check the fuses.
check crank sensor
check igntion coils
where is the Kill start button on a buick century 2003?
Try changeing the fuel filter,I had the same problem and it helped.
Is it overheating. Cheapest is a bad waterpump. Or worse, headgasket blown, or bad motor. Bad crankpulley could cause not to start, but would not cause overheating unless belt came off.
what will cause a transmission in a 1992 buick lasebre to shrudderas and stall engine
what would cause a 1994 Buick LeSabre v6 to turn off going down the road.
A faulty crank sensor can do that.
the most likely cause of that would be the power steering pump failing.
The ground cable could be bad as well as check all cables for corrosion.
has the same problem with a 92 Pontiac bonniville with the 3800 ended up being the cam position sensorI justot work.