Well with out you describing what kind of noise, pinging or knock, there could be many different answers to this. I'll stick with the most common problems, bad gas wrong octane .bad plugs or wires, ,faulty emissions system, vacuum leak, or fuel injection system malfuntion . all of these could be your answer but the problem needs to be better descibed. I would start with the easiest firat then move on from there.
what can cause a 2002 buick lesabre to not crank
what would cause a 1994 Buick LeSabre v6 to turn off going down the road.
Water.
fan or thermostat not working
The transmission is not shifting in and out of gear or your front joint is going bad
the tps is bad-throttle positioning sensor
Bad wheel bearing.
Check the belts. The most common cause of squealing is a worn or loose belt on the front of the engine.
only thing that will cause smoke in steering column,is an electrical short in the wiring inside the steering column
wheel bearings are going bad, need to change your hub assembly
94 Buick LeSabre, runs great until I step on gas and then it starts to chug and hesitate
have u checked spark plug wires, ignition coils, timing,spark plugs or had it hooked to a reader?