Exhaust Temperature Is High; Fuel Dilution Of Engine Oil; Intermittent Engine Shutdown - Perkins M190C Troubleshooting Manual

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Exhaust Temperature Is High

Probable Causes
• Diagnostic codes
•
Electrical connectors
• Air inlet and exhaust system
Recommended Actions
Diagnostic Codes
Connect the electronic service tool and check
for active diagnostic codes. Troubleshoot any
active diagnostic codes before continuing with this
procedure.
Electrical Connectors
Check for correct installation of the J2/P2/A-C1
Electronic Control Module (ECM) connector and of
the A-C10, A-C11, and A-C12 connectors that are for
the injectors. Refer to the diagnostic functional test
Troubleshooting, "Electrical Connectors - Inspect".
Air Inlet and Exhaust System
1. Check the air inlet manifold pressure. Check for
air inlet restrictions and/or leaks.
2. Check for leaks between the exhaust manifold and
the turbocharger. Check for exhaust restrictions.

Fuel Dilution of Engine Oil

Probable Causes
• Leaking seals on the case of the unit injector or on
the barrel of the unit injector
• Leaking seals on the fuel line adapter for the
cylinder head
• Excessive leakage from the unit injector tip or
breakage of the unit injector tip
• Cracked fuel supply manifold
•
Leaking seal on the fuel transfer pump
Recommended Actions
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Leaking Seals on the Case of the Unit
Injector or on the Barrel of the Unit
Injector
Look for signs of damage to the seals for the unit
injectors. Replace any seals that are leaking.
Leaking Seals on the Fuel Line Adapter
for the Cylinder Head
Look for signs of damage to the seals on the fuel line
adapter for the cylinder head. Repair any leaking fuel
lines or components and/or replace any leaking fuel
lines or components.
Excessive Leakage from the Unit Injector
Tip or Breakage of the Unit Injector Tip
Look for signs of damage to the unit injectors. If
necessary, repair the unit injectors or replace the unit
injectors.
Cracked Fuel Supply Manifold
Look for signs of damage to the fuel supply manifold.
Leaking Fuel Transfer Pump Seal
Ensure that the weep hole is not plugged. If
necessary, repair the fuel transfer pump or replace
the fuel transfer pump.

Intermittent Engine Shutdown

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Note: Use this procedure only if the engine shuts
down completely and the engine must be restarted.
Probable Causes
•
Diagnostic codes
• Air Intake
• Electrical connectors
•
Fuel supply
• Engine shutdown switch (if applicable)
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Troubleshooting Section
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