First check and see if there are any codes in your computer that could be a bad sensor. My check engine light came on then went off for a long time but after the car had to be towed in we found a bad fuel sensor and when it was replaced the car has run fine since.
Area where your left foot rests while you are driving
One of the main causes for a 1998 Buick LeSabre to die while driving is a problem with the computer. The computer might tell the fuel pump to shut off and stop sending fuel to the motor.
I have a shimmy or small vibration while driving the interstate on my 1994 buick lesabre - if i was to check the front and rear bearings - how would i do that and what would i look for
mass air flow sensor
bad switch or relay, possible short in wiring
94 Buick LeSabre, runs great until I step on gas and then it starts to chug and hesitate
Possibly the crank case oil sensor. Had the same symptoms on a Buick LeSabre '91
i had an 85 caddy that did the same thing.. It turned out to be a broken wire to the distributer
fuel pump
My 94 LeSabre has been doing this for about 2 years. Lots of research. Just changed the Crankshaft Position Sensor on 5/10/08 and no problems.
Could be a bad fuel pump Electric or gas. Fuel Filter could B ALMOST completely clogged.
Because it liked screaming at your mice while it was shirtless.........