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
|
| • | Make sure the driver is using the correct starting procedure. |
|
Sensor Checks
| Check the Engine Coolant Temperature (ECT) sensor. Use the scan tool in order
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 engine shut-off solenoid operation. |
| • | Check the fuel tank cap vent. |
|
Electrical System Checks
|
| • | Check for a slow cranking speed. |
|
Air Intake System Checks
|
| • | Check the air cleaner and the air intake ducts for a restriction. |
| • | Check for a restriction in the turbo charger inlet duct. |
| • | Check for a restriction in the intake manifold. |
|
Exhaust System Check
| Check the exhaust system for a possible restriction. Refer to Exhaust
Systems.
|
Engine Mechanical Checks
| Check the engine for the following:
| • | Broken or weak valve springs |
|
Additional Checks
|
| • | Check for a no crank signal. Refer to Control Module Systems. |
| • | Check the Service Bulletins for control module software updates. |
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