2000 Nissan Frontier Owner's Manual - Page 203
2000 Nissan Frontier Manual
Page 203 highlights
AIR CLEANER HOUSING FILTER ¼ Never pour fuel into the throttle body or attempt to start the engine with the air cleaner removed. Doing so could result in serious injury. ADI1079 ADI1080 The filter element should not be cleaned and reused as it is given a special treatment. We recommend it be replaced according to the maintenance intervals shown in the ''Maintenance'' section of this manual. When replacing the filter, wipe the inside of the air cleaner housing and the cover with a damp cloth. WARNING ¼ Operating the engine with the air cleaner removed can cause you or others to be burned. The air cleaner not only cleans the air, it stops flame if the engine backfires. If it isn't there and the engine backfires, you could be burned. Do not drive with the air cleaner removed, and be careful when working on the engine with the air cleaner removed. Do-it-yourself 8-21