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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 else can I help you with?
2002 Buick lesabre crank dont start?
what can cause a 2002 buick lesabre to not crank
FAQ10what would cause a 1994 Buick LeSabre v6 to shut off my self going down the road?
what would cause a 1994 Buick LeSabre v6 to turn off going down the road.
What could cause the back floorboard of a 1993 buick lesabre to get wet?
Water.
Besides a coolant leak what else can cause a 1997 Buick LeSabre to overheat?
fan or thermostat not working
What could cause a 1994 Buick LeSabre to stall when attempting to accelerate over 50mph?
the tps is bad-throttle positioning sensor
What is the cause of a loud whining noise when a 2000 Buick LeSabre speeds up but stops when it slows down?
Bad wheel bearing.
What would cause your buick skylark to shake violently when accelerating?
The transmission is not shifting in and out of gear or your front joint is going bad
What can cause 1993 Buick LeSabre steering column smoke?
only thing that will cause smoke in steering column,is an electrical short in the wiring inside the steering column
What might cause a squealing engine noise on a 1997 Buick Lesabre?
Check the belts. The most common cause of squealing is a worn or loose belt on the front of the engine.
What cause humming in right front wheel of 1994 Buick LeSabre?
wheel bearings are going bad, need to change your hub assembly
What would cause a 1994 Buick Lesabre to chug while driving and sometimes chug until it cuts off while idleing.. already replaced the spark plugs. could it be an EGR valve or fuel pump?
94 Buick LeSabre, runs great until I step on gas and then it starts to chug and hesitate
Is it all right to use transmission fluid in place of power steering fluid for a 1990 Buick Lesabre?
NO the transmission fluid will cause the seals in the pump to leak
