2007 Dodge Ram 2500 Pickup Owner Manual Diesel - Page 264
2007 Dodge Ram 2500 Pickup Manual
Page 264 highlights
264 STARTING AND OPERATING speed will slowly increase to 1000 RPM after 2 minutes of idle, if the following conditions are met: • foot is off brake pedal and throttle pedal • automatic transmission is in Park (P) • vehicle speed is zero • Applying the throttle will cancel fast idle • If the engine is equipped with an aftermarket exhaust brake (manual transmissions only), operating the exhaust brake at idle will greatly improve warm up rate and will help keep the engine close to operating temperature during extended idle. Stopping The Engine Idle the engine a few minutes before routine shutdown. After full load operation, idle the engine 3 to 5 minutes before shutting it down. This idle period will allow the lubricating oil and coolant to carry excess heat away from the combustion chamber, bearings, internal components, and turbocharger. This is especially important for turbocharged, charge air cooled engines. NOTE: During engine shutdown on vehicles equipped with manual transmissions, it is normal for the diesel engine to resonate heavily for a moment during engine shut off. When the engine is connected to a manual transmission, this resonance causes load gear rattle from the transmission. This is commonly referred to as "shut down rattle". The manufacturer recommends performing engine shut down with the clutch pedal pushed to the floor (clutch disengaged). When engine shut down is performed in this manner the rattle is reduced (not eliminated).