Dodge dakota 2002 Service Manual page 1535

9 - 286 ENGINE 5.9L DIESEL
ENGINE 5.9L DIESEL (Continued)
POSSIBLE CAUSE
Manifold Air Pressure (Boost) Sensor or sensor circuit
malfunctioning.
Raw fuel in intake manifold.
Turbocharger air intake restriction.
Turbocharger damaged.
Turbocharger has excess build up on compressor
wheel and/or diffuser vanes.
Turbocharger wheel clearance out of specification.
POSSIBLE CAUSE
Air in fuel supply: Possible leak in fuel supply side
(between transfer pump and fuel tank module).
Coolant leaking into combustion chamber.
Diagnostic Trouble Codes (DTC's) active or multiple,
intermittent DTC's.
In very cold ambient temperatures, engine block heater
is malfunctioning (if equipped).
Engine coolant temperature sensor malfunctioning.
Engine Control Module (ECM) not calibrated or has
incorrect calibration.
Fuel filter plugged.
Fuel grade not correct or fuel quality is poor.
Fuel heater element or fuel heater temperature sensor
malfunctioning. This will cause wax type build-up in fuel
filter.
Fuel injector malfunctioning.
Fuel injector hold-downs loose.
EXCESSIVE BLACK SMOKE
A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information.
Fuel injectors leaking on engine shutdown. Do Fuel
Injector Test (Refer to 14 - FUEL SYSTEM/FUEL
INJECTION/FUEL INJECTOR - DIAGNOSIS AND
TESTING).
Remove restriction.
(Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - INSPECTION).
(Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - CLEANING).
(Refer to 11 - EXHAUST SYSTEM/TURBOCHARGER
SYSTEM/TURBOCHARGER - INSPECTION).
EXCESSIVE WHITE SMOKE
(Refer to 14 - FUEL SYSTEM/FUEL DELIVERY/FUEL
TRANSFER PUMP - DIAGNOSIS AND TESTING).
Do pressure test of cooling system (Refer to 7 -
COOLING - DIAGNOSIS AND TESTING).
Refer to Powertrain Diagnostic Procedures Information.
(Refer to 7 - COOLING/ENGINE/ENGINE BLOCK
HEATER - REMOVAL).
A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information. Also check
thermostat operation (Refer to 7 - COOLING/ENGINE/
ENGINE COOLANT THERMOSTAT - DIAGNOSIS AND
TESTING).
A DTC should have been set. Refer to Powertrain
Diagnostic Procedures Information.
Refer to Powertrain Diagnostic Manual for fuel system
testing.
Temporarily change fuel brands and note condition.
Change brand if necessary.
Refer to Fuel Heater Testing (Refer to 14 - FUEL
SYSTEM/FUEL DELIVERY/FUEL HEATER -
DIAGNOSIS AND TESTING).
A DTC should have been set. Perform Cylinder cutout
Test using DRB scan tool to isolate individual
cylinders. Also refer to Powertrain Diagnostic
Procedures Information and, (Refer to 14 - FUEL
SYSTEM/FUEL INJECTION/FUEL INJECTOR -
DIAGNOSIS AND TESTING).
Torque to specifications.
CORRECTION
CORRECTION
DR