1998 Nissan Altima Owner's Manual - Page 159

DRIVE BELTS SPARK PLUG REPLACEMENT 1. Remove brackets as necessary to give access to the high tension spark plug cables and spark plugs. 2. Disconnect the spark plug cables from the spark plugs. When disconnecting, always hold the boots, not the cables. Mark all cables to identify their original locations. ADI0533 DI1229M WARNING Be sure the ignition key is OFF. The engine could rotate unexpectedly. 1. Visually inspect each belt for signs of unusual wear, cuts, fraying or looseness. If the belt is in poor condition or is loose, have it replaced or adjusted by an authorized NISSAN dealer. 2. Have the belts checked regularly for condition and tension in accordance with the maintenance schedule found in the ''Maintenance'' section of this manual. WARNING Be sure the engine and ignition switch are off and that the parking brake is engaged securely. CAUTION Be sure to use the correct socket to remove the plugs. An incorrect socket can cause damage. 8-14 Do-it-yourself