CHECK ID CODE
Check that each injection compensation code registered in the injector assembly installed on each cylinder matches the ones registered in the ECM Click here.
If any of the codes do not match, follow the procedure below to correct the registration details and recheck the symptom.
Correct the registration details by following the procedure in "INPUT INJECTOR COMPENSATION CODE(S) INTO ECM" Click here.
After correcting the registration details, check if the same symptom occurs as when the vehicle was brought in.
Tech Tips
If it does not occur, the symptom may be caused by errors in injection compensation code registration.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
DRAIN ENGINE COOLANT
CAUTION:
Do not loosen the radiator drain cock plug and engine drain plug while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
| *1 | Radiator Cap Sub-assembly |
| *2 | Radiator Drain Cock Plug |
| *3 | Engine Drain Plug |
Loosen the radiator drain cock plug and engine drain plug.
Remove the radiator cap sub-assembly, then drain the coolant.
Close the radiator drain cock plug.
Tighten the engine drain plug.
REMOVE NO. 2 INTAKE PIPE
Remove the 3 bolts, loosen the 2 hose bands, and remove the No. 2 intake pipe and No. 1 air hose.
REMOVE NO. 1 AIR HOSE
Remove the 2 bolts and hose clamp, and then remove the No. 1 air hose.
REMOVE NO. 4 AIR HOSE
Loosen the 2 clamps and remove the No. 4 air hose.
REMOVE EGR COOLER SUB-ASSEMBLY
Disconnect the water by-pass hose.
Remove the 6 bolts, EGR cooler sub-assembly, bracket and 2 gaskets.
SEPARATE WIRE HARNESS AND CONNECTORS
Disconnect the 3 connectors, 4 wire harness clamps and bolt.
REMOVE EGR VALVE BRACKET
Remove the 4 bolts and bracket.
REMOVE WATER BY-PASS PIPE SUB-ASSEMBLY
Disconnect the 2 hoses from the EGR valve assembly.
Disconnect the 3 wire harness clamps.
Remove the 3 bolts, 2 union bolts and 4 gaskets, and separate the water by-pass pipe sub-assembly.
REMOVE DIESEL THROTTLE BODY
Disconnect the 2 diesel throttle body connectors.
Remove the 2 bolts, 2 nuts and diesel throttle body.
REMOVE VENTURI ASSEMBLY
Remove the bolt and bracket from the venturi assembly.
Remove the 4 bolts, 2 nuts and venturi assembly from the intake manifold.
REMOVE OIL FILLER CAP SUB-ASSEMBLY
Remove the oil filler cap sub-assembly.
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Remove the 2 bolts and cylinder head cover sub-assembly.
REMOVE NO. 2 CYLINDER HEAD COVER SUB-ASSEMBLY
Remove the wire harness.
Remove the 2 bolts and No. 2 cylinder head cover sub-assembly.
Remove the cushions, spacers and gasket.
REMOVE INJECTION PIPE CLAMP
Remove the 2 nuts.
Remove the oil level gauge.
Remove the oil level gauge guide and O-ring, and then remove the 2 injection pipe clamps.
REMOVE INJECTOR ASSEMBLY
Using a union nut wrench (17 mm), loosen the 8 union nuts and remove the injection pipe sub-assembly.
Remove the 5 hollow screws and 5 gaskets, and then remove the nozzle leakage pipe.
Tech Tips
After removing the nozzle leakage pipe, put it in a plastic bag to prevent foreign matter from contaminating the injectors.
Using a small screwdriver, remove the 4 holder seals.
Remove the 4 bolts and the 4 nozzle holder clamps.
Note
Arrange the holder clamps and bolts in the correct order.
Remove the 4 injectors.
Note
Arrange the injectors in the correct order.
Attach tags to identify the cylinder (#1 to #4) to the injector assemblies so that each injector assembly can be inserted into the correct cylinder during installation.
Remove the gasket from each injector.
| *1 | O-ring |
Remove the O-ring from each injector.
REMOVE INJECTION NOZZLE SEAT GASKET
Remove the 4 injection nozzle seat gaskets from the cylinder head.