How to Change the Air Filter on a 2007 Buick Lacrosse


General Motors advises replacing the engine-air filter in your 2007 Buick Lacrosse every 50,000 miles. The replacement interval, as well as the procedure, is the same whether your Lacrosse is equipped with the 3.6L or 3.8L engine. If you drive in dusty or dirty conditions, GM recommends inspecting the filter at each oil change, and replacing it if necessary. A dirty air filter can decrease engine performance and acceleration by 6 to 11 percent, according to the EPA.

Things You'll Need

  • Replacement filter (GM part number 15221217)
  • Turn the engine off. Open the hood and approach the driver-side engine compartment. Locate the air-filter compartment. It's a large-black box, mounted horizontally.

  • Lift the compartment tabs upward to release them. Grasp the compartment and push it forward, toward the windshield. This will separate the filter cover from the compartment and expose the filter.

  • Remove the air filter from the compartment. Insert the replacement filter. Grasp the filter cover and pull it toward the filter housing. Line up the notches on the driver side to make sure the cover is properly attached. Close the clamps to finish.

Tips & Warnings

  • To inspect your air filter, pull it out of its case and shake it to remove excess dust. If it still appears heavily soiled, it needs to be replaced.

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