What is the most problem with a 2004 model
20

Asked by Johnny Aug 11, 2020 at 02:06 AM about the 2004 Buick LeSabre

Question type: Maintenance & Repair

2 Answers
157,615

James answered 4 years ago

Upper and lower intake manifold gaskets failing at about 90,000 to 120,000 miles and transmission problems around the same mileage. Shift solenoids in the transmission are troublesome and the transmission will often lose overdrive and TCC (Torque Converter Clutch) lock in. This will greatly reduce your gas mileage! None of these repairs are cheap either! Hope that helps! Jim

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