Buick Lesabre owners have reported 2 problems related to water pump (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Buick Lesabre based on all problems reported for the Lesabre.
Engine backfiring on 1998 Buick Lesabre. Recall# 04v090000. The heater failed and the consumer was informed that a water pump was needed. The engine also died with less than 100k miles. The consumer requested reimbursement.
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While driving 65 mph consumer noticed fluid leaking from underneath the vehicle. It was taken to the dealer for inspection, and mechanic determined that the water pump needed to be replaced, and replaced it. However, the problem recurred, and the vehicle was taken back to the dealer. Mechanic determined that the engine needed to be replaced.