Q: How to replace the air filter and PCV filter element in a Lincoln Continental?
A: Replace the air filter and PCV filter element at set intervals. For carbureted models, the filter is on the carburetor top. Unscrew the wing nut, lift the cover, and remove the filter. Clean the housing with a rag and insert the new filter. If there's a PCV filter, replace it. For fuel-injected models, detach the clips, remove the cover and filter, clean the housing, and insert the new filter. Ensure the marked side faces up if marked TOP. Secure the cover with the clips.