Fuel Delivery and Air Induction: Service and Repair

Do not run your diesel vehicle out of fuel as this will allow air to enter the fuel system which will make restarting difficult. Longer engine cranking time may be required once air is in the fuel system. If air enters the fuel system (either through running the fuel tank(s) empty or during a fuel filter change), the engine will self-purge the trapped air once it starts running. The engine may run roughly and produce white smoke while air is in the fuel system; this is normal and should stop after a short time.

WARNING: Do not crank the engine for more than 30 seconds at a time as damage to the starter motor may result.

If the engine fails to start in 30 seconds turn the key to the OFF position and wait 30 seconds before trying again.