2002 Ford F250 Owner Guide 5th Printing - Page 227
2002 Ford F250 Manual
Page 227 highlights
Maintenance and Specifications Note: Do not start your engine with the air cleaner removed and do not remove it while the engine is running. Changing the air filter element (gasoline engines only) 1. Loosen the clamp that secures the air filter element in place. 2. Carefully separate the two halves of the air filter housing. 3. Remove the air filter element from the open end of the air filter housing. 4. Install a new air filter element, ensuring the arrow on the top half of the air filter housing lines up with the notch on the bottom half of air filter housing. Be careful not to crimp the filter element edges between the air filter housing. This could cause filter damage and allow unmetered air to enter the engine if not properly seated. 5. Replace the two halves of the air filter housing and secure the clamp. INFORMATION ABOUT UNIFORM TIRE QUALITY GRADING New vehicles are fitted with tires that have a rating on them called Tire Quality Grades. The Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: 227