2007 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 257
2007 Dodge Ram 3500 Pickup Manual
Page 257 highlights
STARTING AND OPERATING 257 attempting to start the engine. This can be accomplished by turning the ignition OFF for at least 5 seconds and then back ON after the WAIT TO START light has gone off, but before the engine is started. However, repeated cycling of the manifold heaters will result in damage to the heater elements or reduced battery voltage. NOTE: If multiple pre-heat cycles are used before starting, additional engine run time may be required to maintain battery state of charge at a satisfactory level. • If the engine stalls after the initial start, the ignition must be turned to the OFF position for at least 5 seconds and then to the ON position to recycle the manifold heaters. NOTE: Excessive white smoke and poor engine performance will result if manifold heaters are not recycled. • Heat generated by the manifold heaters dissipates rapidly in a cold engine. If more than two minutes pass between the time the WAIT TO START light goes OFF and the engine is started, recycle the manifold heaters by turning the ignition OFF for at least 5 seconds and then back ON. • If the vehicle is driven and vehicle speed exceeds 19 mph (31 km) before the manifold heater post-heat (after start) cycle is complete, the manifold heaters will shut off. • If the engine is started before the WAIT TO START light turns off, the preheat cycle will turn off. • If the engine is cranked for more than 10 seconds, the post-heat cycle will turn off. NOTE: Engine idle speed will automatically increase to 1000 rpm at low coolant temperatures to improve engine warm-up. 5