Engines 4. If minimum engine oil pressure at idle of 10 psi (69 kPa) does not register within 15 seconds, shut down the engine. 2. When all the indicators go out, turn the ignition switch to the start position. If the engine won’t start within 15 seconds, release the ignition switch and allow the starter motor to cool. CAUTION IMPORTANT: If the engine won’t start, check the main engine power fuses. The fuses are located along the main engine electrical harness on the left frame rail, near the batteries. If the fuses are blown, replace the fuses. Be sure to find the cause of the blown fuses as soon as possible.
Protect the turbocharger during the start-up by not opening the throttle or accelerating the engine above 1000 rpm until minimum engine idle oil pres- sure registers on the gauge. 5. Idle the engine for three to five minutes at 1000 rpm before operating the engine under load. WARNING Detroit Diesel Never pour fuel or other flammable liquid into the air inlet opening in the throttle body in an attempt to start the vehicle. This could result in a flash fire causing serious personal injury or property dam- age. NOTE: Before doing these steps, do the steps in "Pre-Start." 1. Turn the ignition switch to the on position ( Fig. 4.1 ).
The CHECK ENGINE and ENGINE PRO- TECT indicators should come on and go out within six to ten seconds. 3. Check the oil pressure gauge immediately after starting the engine. 4. If no pressure registers within 10 to 15 seconds or the ENGINE PROTECT indicator comes on, shut down the engine and check the lubricating oil sys- tem. IMPORTANT: On vehicles equipped with an intake air preheater, the amber INTAKE HEATER indica- tor stays on for a minimum of two seconds, re- gardless of coolant temperature. Wait until the IN- TAKE HEATER indicator goes out before attempting to start the engine. 4.5