Specifications
Symptom:
*ENGINE CRANKS BUT WILL NOT START
POSSIBLE CAUSES
CAMSHAFT POSITION SENSOR SIGNAL PROBLEM
CRANKSHAFT POSITION SENSOR SIGNAL PROBLEM
ECM CODES PRESENT
ECT SENSOR
ENGINE CONTROL MODULE
ENGINE DRIVE GEAR/SPROCKET
FUEL SUPPLY CONTAMINATION
FUEL SYSTEM PRESSURE MECHANICAL
FUEL SYSTEM RESTRICTION
GLOW PLUGS
SKIM CODES PRESENT
TEST ACTION APPLICABILITY
1 NOTE: The ECM must have proper power and ground connections for the
following tests to be valid. Refer to Checking the ECM Power and Grounds
in the symptom list.
NOTE: A no-start condition may occur if the Fuel Temperature Sensor is
shorted or if the Fuel Temperature Sensor Signal circuit is shorted to
ground or shorted to Sensor Ground.
Turn the ignition on.
With the DRBIIIt, read the ECM DTCs.
Does the DRBIIIt display any ECM DTCs?
All
Yes → Refer to symptom list for problems related to ECM DTC.
Perform NO START VERIFICATION - VER-1.
No → Go To 2
2 Turn the ignition on.
With the DRBIIIt, read the SKREEM DTCs.
Does the DRBIIIt display any SKREEM DTCs?
All
Yes → Refer to symptom list for problems related to SKIM DTC.
Perform NO START VERIFICATION - VER-1.
No → Go To 3
3 Using a temperature probe, check the vehicle temperature near the ECT Sensor.
Turn the ignition on.
With the DRBIIIt in Sensors, read the ECT Sensor temperature.
Compare the temperature probe reading with the DRBIIIt reading.
Are the two readings within 10°C of each other?
All
Yes → Go To 4
No → Repair as necessary.
Perform NO START VERIFICATION - VER-1.
239
DRIVEABILITY - DIESEL










