2010 Dodge Ram 1500 Regular Cab Owner Manual - Page 527

MAINTAINING YOUR VEHICLE 525 Under normal operating conditions, the catalytic con- • Do not shut off the engine or interrupt the ignition, verter will not require maintenance. However, it is imwhen the transmission is in gear and the vehicle is in portant to keep the engine properly tuned to assure motion. proper catalyst operation and prevent possible catalyst • Do not try to start the engine by pushing or towing the damage. vehicle. NOTE: Intentional tampering with emissions control • Do not idle the engine with any spark plug wires systems can result in civil penalties being assessed disconnected or removed, such as when diagnostic against you. testing, or for prolonged periods during very rough idle or malfunctioning operating conditions. In unusual situations involving grossly malfunctioning engine operation, a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, stop the vehicle, turn off the engine and allow it to cool. Service, including a tune-up to manufacturer's specifications, should be obtained immediately. To minimize the possibility of catalytic converter damage: 7