199002958 - D010 ENGINE IDLE IRREGULAR
The customer complains that: Irregular idling/vibrations| Test results | ||||||
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation | ||
|---|---|---|---|---|---|---|
| Check that the engine oil level is correct Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY Check that the air intake/vacuum circuit is working properly by carrying out the See Test 1048OA AIR INTAKE/VACUUM CIRCUIT CHECKCheck the condition of the fuel supply circuit and make sure that it is working properly See Test 1040OA FUEL SUPPLY CIRCUIT CHECKCheck the operation of the low pressure supply circuit See Test 1060OB LOW FUEL DELIVERY PRESSURE CIRCUIT CHECK | Move on to Step 1 | Oil level incorrect | Restore the correct engine oil level Op. 0010T11 ENGINE OIL - CHECK LEVEL AND TOP UP, IF NECESSARY | |||
| 1 | MODE PARAMETERS CHECK | All OK | Problems encountered | Operation | ||
| Select the following control unit at the diagnostic equipment: Electronic injection control unit EDC16C39 CF4/EOBD CAN (EP engine 1.9).Check the value of the following parameters:· Battery voltage See Test 5530BB BATTERY VOLTAGE CHECK· Accelerator pedal· Accelerator position 1 AD/C· Accelerator position 2 AD/C See Test 1068AC ACCELERATOR PEDAL CHECKS- Target Diesel pressure- Measured Diesel pressure See Test 1060GH DIESEL PRESSURE CHECK· Engine rpm See Test 1060GI CHECK ENGINE SPEED· Measured air mass See Test 1060GG CHECK MEASURED AIR MASS· Engine coolant temperature See Test 1060OE ENGINE COOLANT TEMPERATURE SENSOR OPERATION CHECK | Move on to Step 2 | |||||
| 2 | PREHEATING RELAY ACTIVE DIAGNOSIS | All OK | Problems encountered | Operation | ||
Carry out the active diagnosis for the preheating relay, checking that the result is positive.
| Move on to Step 4 | The result of the active diagnosis is negative | Move on to Step 3 | |||
| 3 | GLOW HEATER PLUGS CHECK | All OK | Problems encountered | Operation | ||
| Check that the glow heater plugs are working properly See Test 5520CA CHECK GLOW PLUG OPERATION | Move on to Step 4 | |||||
| 4 | ELECTRICAL EQUIPMENT CHECK | All OK | Problems encountered | Operation | ||
| Check that fuse F59 has not blown (second from the left on the second row from the bottom) | Move on to Step 5 | Fuse F59 has blown | Restore the connections or, if necessary, replace the junction unit in the engine compartment Op. 5505A13 ADDITIONAL JUNCTION UNIT IN ENGINE COMPARTMENT - R.R. | |||
| 5 | DIESEL PREHEATING RELAY CHECK | All OK | Problems encountered | Operation | ||
| Check the diesel preheating relay circuitSee Test 5505AC | Move on to Step 6 | |||||
| 6 | CHECK USING DIAGNOSTIC EQUIPMENT | All OK | Problems encountered | Operation | ||
| Carry out the active diagnosis for the E.G.R. solenoid | Move on to Step 7 | Solenoid not working | Restore the wiring continuity See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT Replace the solenoid if necessary Op. 1080C24 E.G.R. SYSTEM SOLENOID - R + R | |||
| 7 | FUEL FILTER CHECK | All OK | Problems encountered | Operation | ||
| Check fuel filter operation | Move on to Step 8 | Water, petrol, paraffin or dirt found to be present | Clean the tank and pipes and replace the diesel filter cartridge Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE | |||
| 8 | VALVE CLEARANCE CHECK | All OK | Problems encountered | Operation | ||
| Check that the tappet clearance is correct Op. 1036H10 VALVE TAPPETS - CHECK AND ADJUST CLEARANCE, IF NECESSARY | Move on to Step 9 | Valve clearance not correct | Adjust the tappets | |||
| 9 | CYLINDER COMPRESSION CHECK | All OK | Problems encountered | Operation | ||
| Carry out the cylinder compression check Op. 0510A10 CYLINDER COMPRESSION - CHECK FOR LOOSE SPARK PLUGS OR INJECTORS | Move on to Step 11 | Cylinder compression insufficient | Move on to Step 10 | |||
| 10 | CHECK ON CAUSE OF INSUFFICIENT COMPRESSION | All OK | Problems encountered | Operation | ||
| Carry out Op. 1016C10 SINGLE CYLINDER HEAD - R.R. AND REPLACE GASKET to check the valve seal and the condition of the cylinders/piston rings | Move on to Step 11 | Valve seal insufficient | Overhaul the cylinder head Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL | |||
| 11 | CORRECT OPERATION CHECK | All OK | Problems encountered | Operation | ||
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the engine management control unit Op. 1060G80 DIESEL ELECTRONIC INJECTION CONTROL UNIT - R.R | |||
