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  1. Disconnect the negative battery cable.
  2. Raise the vehicle.
  3. Remove the front lower splash shield.
  4. Drain the coolant by opening draincock in radiator.
  5. Close the radiator draincock.
  6. Install the front splash shield.
  7. Lower the vehicle.
  8. Remove the accessory drive belt.
  9. Remove the generator.
  10. Remove the heater hoses.
  11. Remove the drive belt tensioner bolts
  12. Remove the drive belt tensioner.
  13. Reverse procedure to install.
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Q: How do you replace the serpentine belt tensioner on 98 buick lesabre?
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