Inspection and verification
WARNING: Do not smoke or carry a lighted cigarette or open flame of any type when working on or near fuel-related components. Highly flammable mixtures are always present in such situations and may ignite. Failure to follow these instructions may result in injury.
WARNING: This procedure involves handling fuel. Always be prepared for fuel splashing. Failure to follow these instructions may result in injury.
CAUTION: Diesel fuel injection equipment is manufactured to very precise tolerances and with very small clearances. Therefore, absolute cleanliness is especially important when working with these components. Always plug any open ports or lines.
NOTE: In addition to its normal function, the glow plug indicator lamp also functions as a check engine light that flashes continuously when the powertrain control module (PCM) records a serious diagnostic code (DTC). Less serious DTCs are also stored in the PCM memory, but are only illuminated when the WDS DTC system check is performed.
NOTE: If a DTC is detected after the problem has been corrected, all DTCs should be cleared. Failure to clear all DTCs may cause problems with overall vehicle drivability.
NOTE: If the fuel level in the fuel tank drops below approximately 4 liters, the engine will run rough. This is a signal to the driver that the vehicle requires refueling to prevent the fuel system from running dry.
1. Check the customer complaint.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual inspection table
|
Mechanical factors |
Electrical factors |
|
Fuel leak(s) |
Starter interlock relay fuse. |
|
Fuel filter |
Power Relay Fuse |
|
Air filter element |
Glow plug relay fuse. |
|
Vacuum line(s)/ vacuum line connections |
Relay |
|
Hose(s)/hose connections |
Wiring harness |
|
Pipelines/pipeline connections |
Plug connector(s) |
|
Fuel contamination |
Passive Anti-Theft System (PATS) LED Operation |
|
Fuel supply line(s) |
Sensor(s) |
|
Fuel return line(s) |
Glow plug indicator light |
|
High pressure fuel supply line(s) |
Injector Control Module (IDM) |
|
Fuel injector(s) |
Powertrain Control Module (PCM) |
|
Fuel manifold |
|
|
Fuel pump |
3. If an obvious cause for a reported or received complaint is found, resolve it (if possible) before proceeding to further action.
4. If the cause is not visually obvious, check the symptom of the malfunction and contact WDS to retrieve the DTC.
5. If no problem related DTCs are found, proceed to the Symptom Table below to continue diagnostics.
Table of signs of malfunction
|
State |
Possible Causes |
Action |
|
•The engine does not turn over and the glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
•The engine does not turn over |
•PATS |
•CHECK if the PATS LED goes out within 3 seconds after the ignition is turned on. For additional information, refer to Section 419-01A / 419-01B. |
|
•Start system |
•For additional information, see Section 303-06. |
|
|
•Ignition switch |
•For additional information, see Section 211-05. |
|
|
•PCM. |
•CONSULT WDS. |
|
|
•The engine cranks but does not start and the glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
•The engine turns over but does not start |
•Low fuel level in the fuel tank. |
•CHECK if the fuel level in the fuel tank is more than 4 L. If the fuel level in the fuel tank is less than 4 L, ADD fuel. |
|
•Clogged fuel filter. |
•Install a new fuel filter. Refer to Section 310-01A for additional information. |
|
|
•Damaged or blocked fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•Glow plug relay. |
•CONSULT WDS. |
|
|
•IDM relay. |
•PERFORM Relay Test. REFER to Wiring Diagrams. |
|
|
•Glow plugs. |
•CONSULT WDS. |
|
|
•Incorrect valve timing. |
•Check the valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Low compression in cylinders. |
•For additional information, see Section 303-00. |
|
|
•Crankshaft Position Sensor (CKP) |
•CONSULT WDS. |
|
|
•Camshaft position sensor (CMP) |
•CONSULT WDS. |
|
|
•Cylinder head temperature sensor (CHT) |
•CONSULT WDS. |
|
|
•PCM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Metering fuel inlet valve. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•Poor starting and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Poor start |
•Low fuel level in the fuel tank. |
•CHECK if the fuel level in the fuel tank is more than 4 L. If the fuel level in the fuel tank is less than 4 L, ADD fuel. |
|
•Clogged fuel filter. |
•Install a new fuel filter. Refer to Section 310-01A for additional information. |
|
|
•Clogging of the air filter element. |
•INSTALL a new air cleaner element. |
|
|
•Glow plug relay. |
•CONSULT WDS. |
|
|
•Glow plugs. |
•CONSULT WDS. |
|
|
• Leak in the fuel system. |
•CHECK the system for fuel leak(s). REPAIR the system if necessary. |
|
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•Limitation of the fuel system capacity. |
•For additional information, refer to Section 310-00A. |
|
|
•Wrong type of engine oil. |
•INSTALL a new oil filter and fill with engine oil. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Incorrect power steering fluid. |
•DRAIN the power steering system fluid and FILL the system with the correct fluid. Refer to Section 211-00 for additional information. |
|
|
•Clogging of the catalytic converter. |
•If necessary, REMOVE and visually INSPECT the catalytic converter. Refer to Section 309-00 for additional information. |
|
|
•Low compression in cylinders. |
•For additional information, see Section 303-00. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•Fuel temperature sensor. |
•CONSULT WDS. |
|
|
•Intake Air Temperature (IAT) sensor. |
•CONSULT WDS. |
|
|
•Manifold Absolute Pressure (MAP) Sensor |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Metering fuel inlet valve. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•The engine starts but immediately stops and the glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
• The engine starts but stops immediately |
•Clogging of the air filter element. |
•INSTALL a new air cleaner element. |
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•PCM relay. |
•PERFORM Relay Test. REFER to Wiring Diagrams. |
|
|
•IDM relay. |
•PERFORM Relay Test. REFER to Wiring Diagrams. |
|
|
•Double flywheel. |
•Visually INSPECT the dual mass flywheel for damage. INSTALL new components if necessary. |
|
|
•Air damper |
•CONSULT WDS. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•CMP sensor. |
•CONSULT WDS. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•PCM. |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Metering fuel inlet valve. |
•CONSULT WDS. |
|
|
•Poor idle performance and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Poor idle performance |
•Low fuel level in the fuel tank. |
•CHECK if the fuel level in the fuel tank is more than 4 L. If the fuel level in the fuel tank is less than 4 L, ADD fuel. |
|
•Clogging of the air filter element. |
•INSTALL a new air cleaner element. |
|
|
•Clogged fuel filter. |
•Install a new fuel filter. Refer to Section 310-01A for additional information. |
|
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Double flywheel. |
•Visually INSPECT the dual mass flywheel for damage. INSTALL new components if necessary. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IAT sensor. |
•CONSULT WDS. |
|
|
•MAP sensor. |
•CONSULT WDS. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•Knock sensor (KS) |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
• Fuel inlet metering valve. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•Engine jerking and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Jerking when the engine is running |
•Low fuel level. |
•CHECK if the fuel level in the fuel tank is more than 4 L. If the fuel level in the fuel tank is less than 4 L, ADD fuel. |
|
•Double flywheel. |
•Visually INSPECT the dual mass flywheel for damage. INSTALL new components if necessary. |
|
|
•Accelerator pedal position sensor (APP). |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•Loss of engine power and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Loss of engine power |
•Brake drag. |
•CHECK the brake system. Refer to Section 206-00 for additional information. |
|
•The vehicle is overloaded or has increased aerodynamic drag (roof racks, towing, etc.). |
•TELL the customer about the impact of vehicle loading and aerodynamic drag on fuel consumption. |
|
|
•Clogging of the air filter element. |
•If necessary, INSTALL a new air cleaner element. |
|
|
•Clogged fuel filter. |
•Install a new fuel filter. Refer to Section 310-01A for additional information. |
|
|
•Kinked condition or narrowing of the cross-section of fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•Turbocharger •Turbocharger vacuum control. •Vacuum diaphragm block of turbocharger. • Solenoid valve for adjusting the position of the blades. |
•INSPECT vacuum line(s) for visible signs of damage or obstruction. CLEAN, REPAIR, or INSTALL new components as necessary. Refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G for additional information. |
|
|
•Incorrect valve timing. |
•CHECK valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Low compression in cylinders. |
•For additional information, see Section 303-00. |
|
|
•Clogging of the catalytic converter. |
•REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter if necessary. Refer to Section 309-00 for additional information. |
|
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Clogged or cracked charge air cooler. •Cracking of charge air cooler pipes. •Missing or loose clamps on the charge air cooler. |
•INSPECT for signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts if necessary. |
|
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•Vehicle Speed Sensor (VSS) |
•CONSULT WDS. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•IAT sensor. |
•CONSULT WDS. |
|
|
•MAP sensor. |
•CONSULT WDS. |
|
|
•APP sensor. |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel temperature sensor. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Metering fuel inlet valve. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•Black smoke at idle and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Black smoke when the engine is idling |
•Clogging of the air filter element. |
•If necessary, INSTALL a new air cleaner element. |
|
•Glow plug relay. |
•CONSULT WDS. |
|
|
•Incorrect valve timing. |
•CHECK valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Turbocharger vacuum control. • Solenoid valve for adjusting the position of the blades. |
•INSPECT for signs of damage or obstruction. CLEAN, REPAIR or INSTALL new elements as necessary. Refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G for additional information. |
|
|
•Clogging of the catalytic converter. |
•REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter if necessary. Refer to Section 309-00 for additional information. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•IAT sensor. |
•CONSULT WDS. |
|
|
•MAP sensor. |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Increased amount of black smoke during acceleration (speeding up), and glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
•Increased amount of black smoke when accelerating |
•Clogging of the air filter element. |
•If necessary, INSTALL a new air cleaner element. |
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Clogging of the catalytic converter. |
•REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter if necessary. Refer to Section 309-00 for additional information. |
|
|
•APP sensor. |
•CONSULT WDS. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•KS |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Black smoke when driving at cruising speed, and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Black smoke when driving at cruising speed |
•Clogging of the air filter element. |
•INSTALL a new air cleaner element. |
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Vacuum diaphragm block of turbocharger. • Solenoid valve for adjusting the position of the blades. |
•For additional information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. |
|
|
•Clogging of the catalytic converter. |
•REMOVE and visually INSPECT the catalytic converter for damage. INSTALL a new catalytic converter if necessary. Refer to Section 309-00 for additional information. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•IAT sensor. |
•CONSULT WDS. |
|
|
•MAP sensor. |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Blue smoke and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Blue smoke |
•Oil combustion in the engine. |
•PERFORM a 1000 km (600 mi) controlled oil consumption check. VERIFY that oil consumption is less than 0.1 L/1000 km (600 mi). For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•Worn or damaged valve guides, piston rings, cylinders, cylinder head or gasket. |
•Remove the cylinder head. INSPECT the cylinder head, pistons and cylinders for signs of wear or damage. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Positive crankcase ventilation (PCV) system. |
•INSPECT for signs of damage or blockage. CLEAN, REPAIR or INSTALL new parts if necessary. |
|
|
•Clogging or damage to the turbocharger return oil line. |
•For additional information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. |
|
|
•White smoke and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•White smoke |
•Water in fuel. |
•CHECK for signs of water in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
•KS |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Incorrect valve timing. |
•CHECK valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Coolant in the combustion chamber. |
•PERFORM a pressure test of the cooling system. Refer to Section 303-03 for additional information. Remove the cylinder head. INSPECT the cylinder head, head gasket, and cylinder bores for wear or damage. |
|
|
•Engine misfires and glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
•Misfires |
•Low fuel level in the tank. |
•CHECK if the fuel level in the fuel tank is more than 4 L. If the fuel level in the fuel tank is less than 4 L, ADD fuel. |
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
|
|
•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
|
|
•Low compression in cylinders. |
•For additional information, see Section 303-00. |
|
|
•Worn or damaged valve(s), tappets or camshaft(s). |
•Remove the cylinder head. INSPECT the cylinder head, valves, lifters and camshafts for signs of wear or damage. Refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E for additional information. |
|
|
•Damaged cylinder head gasket. |
•Remove the cylinder head. INSPECT the cylinder head gasket and cylinders for wear or damage. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Engine operating temperature too high. |
•For additional information, see Section 303-03. |
|
|
•CHT sensor. |
•CONSULT WDS. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•CMP sensor. |
•CONSULT WDS. |
|
|
•IAT sensor. |
•CONSULT WDS. |
|
|
•MAP sensor. |
•CONSULT WDS. |
|
|
•KS |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
|
|
•Fuel pump |
•CONSULT WDS. |
|
|
•Engine detonation at idle and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
|
•Engine detonation when idling |
•Low engine oil level. |
•Check engine oil level. FILL with engine oil if necessary. |
|
•Incorrect type or contamination of fuel. |
•CHECK for signs of contamination such as strange odors coming from the fuel tank. •CHECK for signs of water or gasoline in diesel fuel. •If fuel contamination is found, drain the entire fuel system. FLUSH the fuel system with clean diesel fuel. Install a new fuel filter. Refer to Section 310-00A / 310-01A for additional information. INSTALL a new fuel pump, fuel injectors, fuel rail, and high-pressure fuel supply lines. Refer to Fuel Pump / Fuel Injectors / Fuel Rail in this section for additional information. |
|
|
•Double flywheel. |
•Visually INSPECT the dual mass flywheel for damage. INSTALL new components if necessary. |
|
|
•Incorrect valve timing. |
•CHECK valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Excessive carbon deposits. |
•Remove the cylinder head. INSPECT the cylinder head and pistons for signs of carbon deposits. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
|
|
•Worn or damaged oil pump. •Worn or damaged timing chain or sprocket. • Serious mechanical engine failure. |
• |
|
|
•KS |
•CONSULT WDS. |
|
|
•CKP sensor. |
•CONSULT WDS. |
|
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
|
•Engine detonation during acceleration (speeding up), and glow plug indicator light flashes |
•DTC has been registered. |
•CONSULT WDS. |
|
•Engine detonation during acceleration |
•KS |
•CONSULT WDS. |
|
•Fuel injector(s) |
•CONSULT WDS. |
|
|
•IDM. |
•CONSULT WDS. |
|
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• Serious mechanical engine failure. |
•For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
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•Metering fuel inlet valve. |
•CONSULT WDS. |
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•Fuel pump |
•CONSULT WDS. |
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• Excessive fuel consumption and glow plug indicator light flashing |
•DTC has been registered. |
•CONSULT WDS. |
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•Increased fuel consumption |
•Brake drag. |
•CHECK the brake system. Refer to Section 206-00 for additional information. |
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•The vehicle is overloaded or has increased aerodynamic drag (roof racks, towing, etc.). |
•TELL the customer about the impact of vehicle loading and aerodynamic drag on fuel consumption. |
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•Clogging of the air filter element. |
•INSTALL a new air cleaner element. |
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•Clogged fuel filter. |
•Install a new fuel filter. Refer to Section 310-01A for additional information. |
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• Leak(s) in the fuel system |
•CHECK the system for fuel leaks. Repair or install new components if necessary. |
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•Double flywheel. |
•Visually INSPECT the dual mass flywheel for damage. INSTALL new components if necessary. |
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•Wrong type of engine oil. |
•INSTALL a new oil filter and fill with engine oil. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
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•Generator. |
•For additional information, refer to Section 414-00. |
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•EGR valve stuck in the open position. • EGR vacuum control valve. |
•For additional information, refer to Section 303-08A / 303-08B. |
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•Vacuum diaphragm block of turbocharger. |
•For additional information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. |
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•Air penetration into fuel lines. |
•For additional information, refer to Section 310-00A. |
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•Incorrect valve timing. |
•CHECK valve timing. For additional information, refer to Section 303-01A / 303-01B / 303-01C / 303-01D / 303-01E. |
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•Turbocharger |
•For additional information, refer to Section 303-04A / 303-04B / 303-04C / 303-04D / 303-04E / 303-04F / 303-04G. |
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•Clutch slippage. |
•For additional information, see Section 308-00. |
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• Low compression in cylinders. |
•For additional information, see Section 303-00. |
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• CHT sensor. |
•CONSULT WDS. |
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• IAT sensor. |
•CONSULT WDS. |
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• MAP sensor. |
•CONSULT WDS. |
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• Fuel injector(s) |
•CONSULT WDS. |
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•IDM. |
•CONSULT WDS. |
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•The engine cuts out during sudden acceleration |
•CMP sensor. |
•CONSULT WDS. |
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•CKP sensor. |
•CONSULT WDS. |
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•Fuel pressure sensor of the fuel manifold. |
•CONSULT WDS. |
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•Metering fuel inlet valve. |
•CONSULT WDS. |
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•Fuel pump |
•CONSULT WDS. |