Note
When replacing the injectors (including shuffling the injectors between the cylinders), common rail or cylinder head, it is necessary to replace the injection pipes with new ones.
When replacing the fuel supply pump, common rail, cylinder block, cylinder head, cylinder head gasket or timing gear case, it is necessary to replace the fuel inlet pipe with a new one.
After removing the injection pipes and fuel inlet pipe, clean them with a brush and compressed air.
DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag activation.
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
REMOVE NO. 1 ENGINE UNDER COVER (for 4WD and Pre-Runner)
Remove the 4 bolts and No. 1 engine under cover.
REMOVE NO. 2 ENGINE UNDER COVER (for 4WD and Pre-Runner)
Remove the 2 bolts and No. 2 engine under cover.
REMOVE NO. 2 AIR CLEANER PIPE SUB-ASSEMBLY
Disconnect the manifold absolute pressure sensor connector.
Disconnect the vacuum hose from the gas filter.
Loosen the 2 clamps.
Remove the bolt and disconnect the pipe together with the 2 air hoses.
REMOVE MANIFOLD STAY
w/ EGR Cooler:
Disconnect the 2 VSV connector and 3 vacuum hoses.
Remove the 2 bolts and manifold stay.
w/o EGR Cooler:
Remove the 2 bolts and manifold stay.
REMOVE OIL FILTER SUB-ASSEMBLY
Using SST, remove the oil filter.
Tech Tips
Insert the drain hose in the oil filter. Put the drain oil container beneath the drain hose to collect the oil from the oil filter.
REMOVE NO. 1, NO. 2 AND NO. 3 INJECTION PIPE SUB-ASSEMBLY
Note
After removing the fuel pipe, cover the outlets on the common rail with tape to keep out foreign matter.
After removing the fuel pipe, put it in a plastic bag to prevent foreign matter from contaminating its injector inlet.
Remove the bolt and No. 2 injection pipe clamp.
Remove the 2 nuts and No. 3 injection pipe clamp.
Using a 17 mm union nut wrench, loosen the union nuts and remove the No. 1, No. 2 and No. 3 injection pipes.
REMOVE NO. 4 INJECTION PIPE SUB-ASSEMBLY
Remove the 2 bolts.
Note
If an injection pipe clamp is removed from the No. 4 injection pipe, replace the injection clamp with a new one.
Using a 17 mm union nut wrench, loosen the union nuts and remove the No. 4 injection pipe.
REMOVE NO. 2 NOZZLE LEAKAGE PIPE ASSEMBLY
Disconnect the 3 fuel hoses.
Remove the union bolt, 3 bolts, No. 2 nozzle leakage pipe and gasket.
REMOVE FUEL INLET PIPE SUB-ASSEMBLY
Remove the engine oil level dipstick.
Remove the bolt and clamp.
Remove the bolt and engine oil level dipstick guide.
Remove the O-ring engine oil level dipstick guide.
Using a 17 mm union nut wrench, loosen the union nuts and remove the fuel inlet pipe.
REMOVE COMMON RAIL ASSEMBLY
Disconnect the fuel pressure sensor connector and pressure discharge valve connector.
Remove the 2 bolts and common rail.
Note
Do not remove the fuel pressure sensor and pressure discharge valve.