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 degrees
more 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 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
Restricted Exhaust
in Engine Exhaust.
|
Engine Mechanical Checks
| Check the engine for the following conditions:
| • | Broken or weak valve springs |
|
Additional
Checks
|
| • | Check the Service Bulletins for control module software updates. |
|
