Shift solenoid location

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! The shift solenoids in your 2000 Buick LeSabre are located inside the transmission, specifically within the transmission valve body. To get to them, you'd need to drop the transmission pan and remove the valve body, which houses the solenoids that control fluid flow and shift timing. It's a bit of a job, so unless you're comfortable working with transmission internals, it might be best to leave this one to a professional. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.