1. Body ElectricalModel OutlineEngineChassisBodyfor Technician Contents Click a Section Tab

2. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Overall Engine Proper Valve Mechanism Lubrication System Intake and Exhaust System Ignition System Charging System Engine Control System

3. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Overall Outline –V6 (60-degree), 3.0-liter, 24-valve, DOHC engine w/Dual VVT-i, ACIS and ETCS-i 3GR-FE [Port Injection] Basic construction and operation of 3GR- FE is the same as 3GR-FE on GS300 -V-_

4. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Overall Features of 3GR-FE 3 Timing Chains Long-reach Type Spark Plug Element Replacing Type Oil Filter MRE Type VVT Sensor -V-_

5. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Overall Features of 3GR-FE Dual VVT-i Water Jacket Spacer Hydraulic Lash Adjuster Rotary Solenoid Type ACIS Valve Camshaft Housing -V-_

6. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Overall Specifications Item 3GR-FE [IS300] 3GR-FE [GS300] No. of Cylinders and Arrangement 6-Cylinder, V-type  Valve Mechanism 24-Valve DOHC, Chain Drive, Dual VVT-i  Combustion ChamberPentroof Type  Displacement cm 3 (cu. in.) 2,994 (182.7)  Bore x stroke mm (in.) 87.5 x 83.0 (3.44 x 3.27)  Compression Ratio10.5  Max. Output kW @ rpm (HP @ rpm) 170 @ 6,200  Max. Torque N·m @ rpm (lb-ft @ rpm) 300 @ 4,400  -V-_

7. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Proper Cylinder Head –Camshaft housing to simply the cylinder head structure –Camshaft bearing cap for IN and EX is one piece Cylinder Head Cover Cylinder Head Cover Gasket Camshaft Bearing Cap Camshaft Housing Cylinder Head Cylinder Head Gasket For IN and EX is one piece -V-_

8. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Cylinder Head –Camshaft and camshaft housing installation 1 2 3 4 5 6 7 8 LH Bank Step1 : Temporary tighten (Torque: 10N ･ m [102kgf ･ cm]) : Tightening order X -V-_

9. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Cylinder Head –Camshaft and camshaft housing installation 1 3 2 4 5 6 8 7 9 10 11 12 LH Bank Step2 : Tighten (Torque: 28N ･ m [286kgf ･ cm]) : Tightening order X -V-_

10. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Cylinder Head –Camshaft and camshaft housing installation LH Bank Step3 : Tighten (Torque: 16N ･ m [163kgf ･ cm]) : Tightening order X 1 2 3 4 5 6 7 8 -V-_

11. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Proper Cylinder Block –Water jacket spacer optimizes the cylinder bore temp. to reduce friction Water Jacket Spacer (LH) Water Jacket Spacer (RH) Water jacket spacer reduces coolant flow WithWithout Overcool Low Oil Viscosity  Low Friction High Oil Viscosity  High Friction -V-_

12. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Proper Cylinder Block –Water passage between bores cools the cylinder block Water Passage To cylinder head Water Jacket -V-_

13. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Proper Cylinder Block –Spiny liner is used to increase cooling performance Approx. 1.0 mm (0.039 in.) Liner Cross Section Outside Cylinder Liner Cylinder Block -V-_

14. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Proper Bearing –Bearing without bearing claw is used for crankshaft bearings and connecting rod bearings Without bearing claw -V-_

15. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Installation of Crankshaft Upper Bearing –Bearing position should be centered to the cylinder block journal to align the oil hole Oil Hole [Upper Bearing] [OK] [NG] Lubrication Holes Center -V-_

16. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Installation of Crankshaft Lower Bearing, Connecting Rod Upper and Lower Bearings –Bearing should be positioned in center and measure the position [Difference Between “B” and “C”: 0.7 mm (0.028 in.) or less] Vernier Caliper B CC -V-_

17. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Proper) Crankshaft Bearing (upper and lower) Combination of different width of the Bearings No.1 and No.4 JournalsNo.2 and No.3 Journals 18.0 mm (0.709 in.) 21.0 mm (0.827 in.) -V-_

18. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism General –Three timing chains to drive intake and exhaust camshafts of each bank Intake Camshaft Exhaust Camshaft Primary Chain VVT-i Controller (for Exhaust) Secondary Chain (RH) Primary Chain Tensioner Secondary Chain Tensioner Hydraulic Lash Adjuster VVT-i Controller (for Intake) -V-_

19. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Camshaft –VVT-i system is adopted for intake and exhaust camshafts (Dual VVT-i) VVT-i Controller Intake Exhaust Assist Spring Camshaft Timing Rotor -V-_

20. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Timing Chain –Three timing chains to drive intake and exhaust camshafts of each bank Crankshaft Idler Sprocket Automatic Tensioner for Secondary Chain (RH) Automatic Tensioner for Secondary Chain (LH) Automatic Tensioner for Primary Chain Primary Chain Secondary Chain (RH) Secondary Chain (LH) -V-_

21. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Chain Tensioner –Primary chain tensioner Ratchet type non-return mechanism Service hall for remove and replace -V-_

22. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Chain Tensioner –2 secondary chain tensioners are adopted for left and right bank Left Bank Spring Ball Oil Pressure (from cylinder head) Pin (Stopper) Chain Tensioner -V-_

23. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Maintaining a constant zero valve clearance through use of oil pressure and spring force Plunger Oil Passage Check Ball Spring Check Ball Plunger Spring Low Pressure Chamber High Pressure Chamber Zero Valve Clearance Oil Passage -V-_

24. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Start cam lift, plunger is pressed and oil in high pressure chamber is kept High Pressure Chamber Plunger -V-_

25. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Then the rocker arm pushes the valve by using hydraulic lash adjuster as a fulcrum High Pressure Chamber Fixed Plunger Fulcrum -V-_

26. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Plunger pushes back, check valve is opened and fills up oil High Pressure Chamber Body Check Ball Plunger -V-_

27. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Plunger is pushed up, then, valve clearance is maintained at zero Zero Valve Clearance Plunger Spring Plunger -V-_

28. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Hydraulic Lash Adjuster –Operation -V-_

29. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Valve Mechanism) Hydraulic Lash Adjuster –Engine oil changing procedure 1. Pushing check ball down by using SST Hydraulic Lash Adjuster [SST: 09276-75010] Correct Incorrect SST -V-_

30. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Valve Mechanism) Hydraulic Lash Adjuster –Engine oil changing procedure 2. Immerse hydraulic lash adjuster in clean engine oil, then compress and return the plunger with SST 5 to 6 times Clean Engine Oil -V-_

31. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Valve Mechanism) Hydraulic Lash Adjuster –Engine oil changing procedure 3. Press the plunger by finger and check the blockage of plunger -V-_

32. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Valve Mechanism) Hydraulic Lash Adjuster –Engine oil changing procedure If plunger is compressed after 3 times trial, replace to new one -V-_

33. Body ElectricalModel OutlineEngineChassisBodyfor Technician Valve Mechanism Idle Sprocket –The rubber is used to reduce chain noise Idle Sprocket Rubber -V-_

34. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Valve Mechanism) Installation of Timing Chain –When the idle sprocket is reused, align the chain plate with the mark where the plate had been in order to tighten the chain between the banks -V-_ Mark Idle Sprocket (Reuse)

35. Body ElectricalModel OutlineEngineChassisBodyfor Technician Lubrication System Oil Delivery Pipe –Oil delivery pipe is adopted to lubricate cam and rocker arm Oil Delivery Pipe Cylinder Head Cover -V-_

36. Body ElectricalModel OutlineEngineChassisBodyfor Technician Lubrication System Oil Filter –Element replacing type oil filter is used Oil Filter Cap Oil Filter Element Oil Pan No.1 Cut Out Portion Front Cap Rib Portion -V-_

37. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Lubrication System) Oil Filter –Oil filter replacement Removal 1. Loosen the filter cap for approx. 4 rev. Remove filter element SST: 09228-06501 2. Align the cap rib vertically and drain oil Rib -V-_

38. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Lubrication System) Oil Filter –Oil filter replacement Removal 3. Remove oil filter cap and filter element 4. Remove filter element and O-ring from filter cap O-ring -V-_

39. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Lubrication System) Oil Filter –Oil filter replacement Installation 1. Set new filter element and O-ring New Install filter element New 2. Install filter cap using SST SST: 09228-06501 -V-_

40. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Lubrication System) Oil Filter –Oil filter replacement Installation 3. Refill engine oil 4. Run the engine and check oil leakage No Leakage -V-_

41. Body ElectricalModel OutlineEngineChassisBodyfor Technician Intake and Exhaust System Intake Air Chamber –Rotary solenoid type ACIS valve is adopted –ACIS valve is unified by laser-welding Plastic Laser-welding Rotary Solenoid Type ACIS Valve -V-_

42. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Intake and Exhaust System) ACIS Valve –Rotary solenoid type ACIS valve is used Valve Rotary Solenoid Type Motor Magnet Shaft Stator ACIS Valve -V-_

43. Body ElectricalModel OutlineEngineChassisBodyfor Technician Ignition System Spark Plug –Long-reach type spark plug to improve cooling performance on cylinder head Extended Water Jacket Long-reach TypeNormal Type Long Iridium Platinum -V-_

44. Body ElectricalModel OutlineEngineChassisBodyfor Technician Charging System Alternator Pulley –One-way clutch realizes a low tension V-ribbed belt One-way Clutch Spring Bearing Alternator Shaft Alternator Alternator Pulley -V-_

45. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Charging System) Alternator Pulley –Using a SST, when remove or install the alternator pulley SST 09820-63020 (2 parts) Remove SST Pulley Shaft -V-_

46. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Charging System) Alternator Pulley –Alternator pulley cap is non-reusable part Alternator Pulley Cap (Non-reusable Part) -V-_

47. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System VVT Sensor –4 MRE type VVT sensors are used for intake and exhaust camshaft of each bank Timing Rotor MRE Type VVT Sensor (Intake) LH Bank MRE Type VVT Sensor (Exhaust) RH Bank MRE Type VVT Sensor (Exhaust) -V-_

48. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System VVT Sensor –Output signal is digital waveform MRE Type Pickup Coil Type 0V Magnet MRE CoilMagnet Timing Rotor -V-_

49. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) VVT Sensor –The resistance of MRE is changed by the magnetic flux direction Sensor Output ”Low”Sensor Output ”High” Magnetic Flux Timing Rotor -V-_

50. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) VVT Sensor –Signal output at extremely low speed rotation can be ensured MRE TypePickup Coil Type Sensor Output Engine Speed Time Sensor Output Engine Speed No Detecting Time -V-_

51. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System VVT Sensor –Due to the adoption of MRE type VVT sensor, Engine ECU can detects the low input or high input malfunction V Sensor low input malfunction VVT Sensor Output Voltage 0.3 4.7 Sensor high input malfunction High Low -V-_

52. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Dual VVT-i (Variable Valve Timing – intelligent) –VVT-i is adopted for intake and exhaust camshafts Intake Exhaust Vane Lock Pin Advance Retard Advance Retard Lock Pin Dual VVT-i for LH Bank -V-_

53. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Dual VVT-i –Operation - Effect - Stable combustion for fuel economy At Idle, Light Load, Low Temp. and Starting TDC BDC Reduce blow back to the intake side Engine Load Engine Speed Operation Range -V-_

54. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Dual VVT-i –Operation - Effect - Improved emission control Better fuel economy At Medium Load TDC BDC Increase internal EGR, Eliminate pumping loss Engine Load Engine Speed Operation Range -V-_

55. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Dual VVT-i –Operation - Effect - Improved torque/output At Low/Middle speed Heavy Load TDC BDC Using the combustion pressure completely Engine Load Engine Speed Operation Range Volumetric efficiency improvement -V-_

56. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Dual VVT-i –Operation Engine Load Engine Speed - Effect - Improved output At High Speed Heavy Load Operation Range TDC BDC volumetric efficiency improvement Reduce pumping loss -V-_

57. Body ElectricalModel OutlineEngineChassisBodyfor Technician Service Point (Engine Control System) Dual VVT-i –Following 14 DTCs are added by adoption of exhaust VVT-i DTC No.Detection ItemDTC No.Detection Item P0013 Camshaft Position "B" Actuator Circuit (Bank 1) P0025 Camshaft Position "B" - Timing Over-Retarded (Bank 2) P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1) P0365 Camshaft Position Sensor "B" Circuit (Bank 1) P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1) P0367 Camshaft Position Sensor "B" Circuit Low Input (Bank 1) P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B) P0368 Camshaft Position Sensor "B" Circuit High Input (Bank 1) P0019 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B) P0390 Camshaft Position Sensor "B" Circuit (Bank 2) P0023 Camshaft Position "B" Actuator Circuit (Bank 2) P0392 Camshaft Position Sensor "B" Circuit Low Input (Bank 2) P0024 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 2) P0393 Camshaft Position Sensor "B" Circuit High Input (Bank 2) -V-_

58. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Cranking Hold Function –Once the power mode is turned to “Engine Starting”, starter operates until engine starting Starter Engine Switch Engine starts Engine Starting Operates Operates Automatically Engine Running Stop Push once Power Mode OFF Stop -V-_

59. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Cranking Hold Function –System Diagram Starter Stop Light Switch ACC Relay IG1, 2 Relay Engine Switch Neutral Start Switch STSW ACCR STAR STA 1, Start signal 2, ACC power cut Engine ECU Power Source Control ECU 3, Operates starter Engine Coolant Temp. Sensor Crankshaft Position Sensor Stop Light Switch Starter Cut Relay Starter Relay -V-_

60. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) Cranking Hold Function –ACC circuit is cut off while cranking to prevent the accessory illumination from operating intermittently ACCR 2, ACC power cut OFF Engine ECU Power Source Control ECU ACC Relay Cranking -V-_

61. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Cranking Hold Function –General operation Start Signal Starter Relay ACC Relay NE Signal Time ON : Without this system : With this system Automatically Controlled Judgment OFF ON OFF ON OFF -V-_

62. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) Cranking Hold Function –Judgment of the engine firing –Maximum cranking time Engine Coolant Temp. (C) Judgment Level (rpm) Engine Coolant Temp. (C) Max. Cranking Time (sec.) Judgment of the engine firing Maximum cranking time (When engine does not start by some abnormalities) -V-_

63. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) Cranking Hold Function –Protection during engine starting 1200 rpm OFF NE Signal ON Start Signal OFF Starter Relay Time Driver pushes the engine switch intentionally If the engine speed becomes 1200 rpm or more while cranking, engine ECU stops starter to prevent starter overrun -V-_

64. Body ElectricalModel OutlineEngineChassisBodyfor Technician Reference (Engine Control System) Cranking Hold Function –Protection during engine starting Engine does not start (Problem) Starter Relay NE Signal ON Start Signal OFF Time Driver pushes the engine switch intentionally 30 sec. OFF Starter overheating protection operates starter max.30 sec. with intentional starter operation Starter overheating protection operates starter max.30 sec. with intentional starter operation -V-_

65. Body ElectricalModel OutlineEngineChassisBodyfor Technician Engine Control System Communication –CAN (Controller Area Network) communication for DLC3 and other ECUs J/C DLC3 CAN Other Bus Intelligent Tester II Gate Way ECU Diagnosis Communication Engine ECU -V-_