One problem related to check engine light on has been reported for the 2002 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Buick Lesabre based on all problems reported for the 2002 Lesabre.
Engine stalls while driving. No warning. Engine will restart, but will only run for a few seconds, then stalls and will not restart. No check engine lights or other indications that there is a problem. Happens at high and low speeds. Car will restart and operate normally after sitting for a few hours, usually overnight. Car has been towed 7 times for this problem. Dealer has replaced two ignition modules, and one crankshaft position sensor. Car has been at the dealer for this problem for a total of twelve weeks since initial occurrence, while the dealer tries to duplicate the problem. Dealer most of the time cannot duplicate the problem. Most recent occurrence, the car displayed the following codes: b1009 and b2734. Mileage between incidents ranges from as high as 15,000 miles to 1,500 miles. Car is undependable, and much more important, unsafe.