One problem related to loud engine noise has been reported for the 2000 Buick Lesabre. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Buick Lesabre based on all problems reported for the 2000 Lesabre.
Attempted to start vehicle by turning key in ignition. Loud sounding "pop" under engine hood was heard. Turned key to "off" position, removed key, exited vehicle. Second loud "pop" occurred. Smoke and flames observed. Left garage to call fire department from safe location.