2014 Nissan Sentra Owner's Manual - Page 331

DRIVE BELT 1. Visually inspect the belt for signs of unusual wear, cuts, or fraying. If the belt is in poor condition, have it replaced or adjusted by a NISSAN dealer. 2. Have the belt checked regularly for condition. SPARK PLUGS WDI0638 SDI1895 1. 2. 3. 4. 5. Automatic tensioner Generator Water pump Air conditioner compressor Crankshaft pully WARNING REPLACING SPARK PLUGS WARNING Be sure the engine and ignition switch are off and that the parking brake is engaged securely. Be sure the ignition switch is in the OFF or LOCK position before servicing drive belt. The engine could rotate unexpectedly. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorrect socket can damage the spark plugs. 8-16 Maintenance and do-it-yourself