Checks
| Action
|
Definition:
The engine cranks OK, but does not start for a long time. The engine does
eventually run, or may start but immediately dies.
|
Preliminary Checks
|
| • | Refer to Important Preliminary Checks. |
| • | Make sure the driver is using the correct starting procedure. |
|
Sensor Checks
|
| • | Check the Engine Coolant Temperature (ECT) sensor using the scan
tool to compare the engine coolant temperature with the ambient air temperature
on a cold engine. If the coolant temperature reading is more than 5° greater
or less than the ambient air temperature on a cold engine, check for a high
resistance in the coolant sensor circuit or the sensor itself. |
|
Fuel System
Checks
|
| • | Check the Supply to injection pump. Refer to Fuel Systems. |
| • | Check for air in fuel system. Refer to Fuel Systems. |
| • | Check the fuel return from injection pump. Refer to Fuel Systems. |
| • | engine shut-off solenoid operation. Refer to Control Module
Systems. |
| • | Check the fuel injection nozzles. Refer to Fuel Systems. |
| • | Check the fuel tank cap vent. |
| • | Check for an internal injection pump problem. Refer to Fuel Systems. |
|
Electrical
System Checks
|
| • | Check glow plug operation. Refer to Section 7. |
| • | Check for slow cranking speed. |
|
Air Intake
System Checks
|
| • | Check the air cleaner and air intake ducts for a restriction. |
| • | Check for a restriction in turbo charger inlet duct. |
| • | Check for a restriction in the intake manifold. |
|
Exhaust
System Check'
|
| • | Check the exhaust system for possible restriction. Refer to Control
Module Systems. |
|
Engine Mechanical
Checks
|
| • | Check the engine for the following: |
| - | Broken or weak valve springs |
|
Additional
Checks
|
| • | Check for no crank signal. Refer to Control Module Systems. |
| • | Check the Service Bulletins for control module software updates. |
|
