Engine Overheat Problems of Buick Lesabre

The contact owns a 2004 Buick Lesabre. While driving at 25 mph, the engine overheated. The contact also stated that the vehicle fuel gauge fluctuated from empty to full, but never fully displayed the correct amount of fuel. The vehicle was taken to a dealer where it was diagnosed that the intake gasket needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was notified of the failure. The approximate failure mileage was 95,718.

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While driving 30 mph the check engine light came and the engine overheated. This was the first incident of this type. The contact owns a Buick Lesabre that has a plastic intake called a plenum. This device cracked and allowed engine coolant to be mixed with the oil. This caused a vapor lock. Now, two of the cylinders show zero compression, and a third shows a pressure of 60 pounds. The engine was totaled and must be replaced. Vehicle was towed to an automobile repair shop, and the mechanic made these terminations. The contact was referred to a Buick dealer, who said they do not feel that this was a manufacturing defect. At this time, no repairs or corrections have been made.

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