WG1605-G-E3,WG1605-L-E3,WG1605-GL-E3, DM
Checks
DEFINITION: The engine cranks OK but does not start.
Preliminary Checks
Control Module Checks
Sensor Checks
Fuel System Checks
Ignition System Checks
Engine Mechanical Checks
Exhaust System Checks
• Refer to Important Preliminary Checks.
• Check the battery cranking voltage, voltage should not be less then 9.0 VDC.
• Check the inline fuse in the ECM battery power circuit. Refer to Engine Controls Schematics.
• Check battery power, ignition power and ground circuits to the ECM. Refer to Engine Control
Schematics. Verify voltage and/or continuity for each circuit.
• Check the TMAP sensor.
• Check the Camshaft position (CMP) and Crankshaft (CKP) position sensors.
• Check the Gasoline pressure sensor.
• Check for fuel pump electrical circuit.
• Verify proper fuel pump pressure.
• Verify proper Fuel rail pressure.
• Refer to the Gasoline Fuel System Diagnosis.
• Check Electrical connections at the injectors.
• Check for the proper primary side ignition voltage output.
• Verify that the spark plugs are correct.
• Check the spark plugs for the following conditions:
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Wet plugs
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Cracks
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Wear
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Improper gap
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Burned electrodes
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Heavy deposits
• Check for loose ignition coil connections at the coil.
• Check for the following:
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Vacuum leaks
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Improper valve timing
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Low compression
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Bent pushrods
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Worn rocker arms
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Broken or weak valve springs
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Worn camshaft lobes
• Check the exhaust system for a possible restriction:
–
Inspect the exhaust system for damaged or collapsed pipes.
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Inspect the muffler for signs of heat distress, or for possible internal failure.
• Check for possible plugged catalytic converter. Refer to Restricted Exhaust System Diagnosis.
1-11
No Start
Action
ECM SYSTEM
KiSC issued 12, 2016 A