199002949 - B013 ENGINE STARTS WITH DIFFICULTY

The customer complains that: Engine starting poor, the starter motor works normally.

		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    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 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: Diesel 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- Target Diesel pressure- Measured Diesel pressure    See Test 1060GH DIESEL PRESSURE CHECK· Atmospheric pressure    See Test 1060GD ATMOSPHERIC PRESSURE CHECK· Engine rpm    See Test 1060GI CHECK ENGINE SPEED· 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 of the preheating relay, checking that the result is positive The check on the following system is only necessary if the outside temperature is below 0 °C.	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 CHECK DIESEL PREHEATING RELAY	Move on to Step 6
6	HIGH PRESSURE CHECK	All OK	Problems encountered	Operation
	Connect the diagnostic equipment to the diagnostic socket.Checkthat the diesel pressure parameter is correct    See Test 1060OD HIGH PRESSURE FUEL CIRCUIT CHECK	Move on to Step 13	Pressure not correct	Move on to Step 7
7	LOW RETURN PRESSURE CHECK	All OK	Problems encountered	Operation
	Checkthat the pressure in the return pipe to the tank is less than 1 bar    See Test 1060OA LOW FUEL RETURN PRESSURE CIRCUIT CHECK	Move on to Step 8	Pressure above the maximum limit: return pipe to the tank obstructed	Repair the pipe; if necessary, replace it
8	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the testthat the diesel pressure between the filter and the pressure pump is between 2 and 3 bar    See Test 1060OB LOW FUEL DELIVERY PRESSURE CIRCUIT CHECK	Move on to Step 13	Pressure below the minimum limit or above the maximum limit	Move on to Step 9
9	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check that the difference in pressure upstream and downstream of the filter is less than 1 bar	Move on to Step 10	Difference in pressure more than 1 bar	Replace the diesel filter cartridge    Op. 1044B10 FUEL FILTER ASSEMBLY - R + R OR REPLACE
10	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check that the supply pump pressure at the filter inlet is more than 2.2 bar	Move on to Step 13	Pressure below 2 bar	Move on to Step 11
11	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Measure the difference in pressure between the electrical pump outlet and the filter inlet, checking that it is less than 0.3 bar	Move on to Step 12	Difference in pressure more than 0.3 bar	Replace the pipe
12	LOW SUPPLY PRESSURE CHECK	All OK	Problems encountered	Operation
	Check as described in the testthat the pump supply voltage is equal to 12V and that the current uptake is between 2 and 10 Amps	Move on to Step 13	Voltage less than 12 volt	Check electrical wiring    See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT
			Current greater than 10 A: pump defective	Replace the fuel pump assembly    Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R
			Current less than 2 A: pump obstructed	Replace the fuel pump    Op. 1040A70 SUBMERGED PUMP ASSEMBLY COMPLETE WITH LEVEL GAUGE CONTROL - R + R and clean the fuel tank
13	CHECK CORRECT OPERATION	All OK	Problems encountered	Operation
	Replace the DRV high pressure regulatorOp. 1060E50 and check that the fault is no longer present	End of diagnosis	Fault persists	Move on to Step 14
14	CHECK CORRECT OPERATION	All OK	Problems encountered	Operation
	Replace the high pressure pump    Op. 1060E10 DIESEL INJECTION PRESSURE PUMP - R.R. and check that the fault is no longer present	End of diagnosis	Fault persists	Move on to Step 15
15	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 17	Cylinder compression insufficient	Move on to Step 16
16	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 sealCheck condition of cylinders/piston rings	Move on to Step 17	Valve seal insufficient	Overhaul the head    Op. 1016E10 SINGLE CYLINDER HEAD, REMOVED - OVERHAUL
			Cylinders/piston rings worn	Restore the seal
17	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