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Some customers may experience a ticking or tapping–type noise from the engine area at 2000 – 2500 rpm during acceleration that is most noticeable after a cold soak. New exhaust manifolds have been developed to minimize this condition. Parts Information PREVIOUS PART NUMBER 17140–0P010 17150–0P010 17173–0P010 CURRENT PART NUMBER 17140–0P070 17150–0P070 Same PART NAME Manifold Assembly, Exhaust, RH Manifold Assembly, Exhaust, LH Gasket, Exhaust Manifold QTY 1 1 2 Repair Procedure Replace both LH and RH exhaust manifolds. Refer to the Technical Information System (TIS), 2005 or 2006 model year Tacoma Repair Manual: 1GR–FE Engine Mechanical: Partial Engine Assy: Replacement. Warranty Information OP CODE EG5027 Applicable Warranty*: The Remove & Reinstall (R & R) of the Exhaust Manifold (P/N 17140–0P010 and 17150–0P010) due to the attached Catalytic Converter, is covered under the Toyota Federal Emissions Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle’s in–service date. DESCRIPTION R & R Exhaust Manifolds TIME 1.6 OFP 17140–0P010 T1 T2 91 41

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Some 2002 – 2004 model year non-PZEV Camry vehicles with the 2AZ–FE engine may experience the following condition: • A rattle noise from the engine area, most noticeable at idle or on light acceleration. The noise may be caused by the intake air as it ?ows through the intake manifold. The intake manifold has been modi?ed to improve this condition. Repair Procedure 1. Verify noise is from the intake manifold. 2. Replace the intake manifold. Refer to the Technical Information System (TIS): • 2002 / 2003 model year Camry Repair Manual, Engine/Hybrid System – Engine Mechanical – “Cylinder Head Gasket (2AZ-FE): Replacement”. • 2004 model year Camry Repair Manual, Engine/Hybrid System – Engine Mechanical – “Cylinder Head Gasket (2AZ-FE)(from July, 2003): Replacement”. 3. Verify that the noise is NOT present after repair.

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Some 2004 – 2009 model year Highlander, 2001 – 2005 model year RAV4, and 2004 – 2010 model year Sienna AWD (4WD) vehicles may display a transmission ?uid or gear oil seepage from a vent on the right side of the transfer case. The seepage is from the transfer RH (right-hand) bearing retainer No. 2 oil seal. Production improvements have been implemented to prevent this condition from occurring. Follow the repair procedure in this bulletin to replace the RH bearing retainer No. 2 oil seal assembly. Transmission Fluid or Gear Oil Seepage from Transfer Case Vent (AWD) Repair Procedure: Removal 1. Con?rm source of gear oil/transmission ?uid seepage is from vent on RH bearing retainer. 2. Remove the engine assembly with transaxle. Refer to the Technical Information System (TIS), applicable model and model year Repair Manual: • 2004 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE: Partial Engine Assy: Replacement” • 2005 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE: Partial Engine Assy: Replacement” • 2006 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE Engine Mechanical: Engine Assembly: Removal” • 2007 Highlander: Engine/Hybrid System – Engine Mechanical – “2AZ-FE / 3MZ-FE Engine Mechanical: Engine Assembly: Removal” • 2008 / 2009 Highlander: Engine/Hybrid System – Engine Mechanical – “ 2GR-FE Engine Mechanical: Engine Assembly: Removal” 3. Remove the automatic transmission w/transfer. Refer to TIS, applicable model and model year Repair Manual: • 2004 Highlander: Drivetrain – Automatic Transmission/Transaxle – “Automatic Transaxle Assy (U151E/U151F) / (U241E/U140F): Replacement” • 2005 Highlander: Drivetrain – Automatic Transmission/Transaxle – “Automatic Transaxle Assy (U151E/U151F) / (U241E/U140F): Replacement” • 2006 Highlander: Drivetrain – Automatic Transmission/Transaxle – “U140F / U151F Automatic Transaxle: Automatic Transaxle Assembly: Removal” 4. Remove the transfer case No. 1 plug and remove the gasket from the plug. 5. Remove the transfer drain plug and remove the gasket from the drain plug. 6. Remove the transfer assembly. A. Remove the 2 bolts and 6 nuts. B. Using a plastic hammer, drive out the transfer assembly from the transaxle assembly. NOTICE • Disconnect the transfer assembly from the transaxle assembly without tilting. • When moving the transfer assembly, do NOT hold the assembly by the oil seals.

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CIRCUIT DESCRIPTION The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evap- orative emission control system. The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal. DTC P0441 and P0446 are recorded by the ECM when evaporative emissions leak from the components within the dotted line in Fig. 1 below, or when there is a malfunction in either the VSV for EVAP, the VSV for vapor pressure sensor, or in the vapor pressure sensor itself. WIRING DIAGRAM Refer to DTC P0440 on page DI-84 . INSPECTION PROCEDURE HINT: S If DTC P0441, P0446, P0450 or P0451 is output after DTC P0440, first troubleshoot DTC P0441, P0446, P0450 or P0451. If no malfunction is detected, troubleshoot DTC P0440 next. Read freeze frame data using TOYOTA hand-held tester or OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction. When the ENGINE RUN TIME in the freeze frame data is less than 200 seconds, carefully check the VSV for EVAP, charcoal canister and vapor pressure sensor. S S TOYOTA hand-held tester:

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Customer Concern: There is an engine vibration. Tests/Procedures: 1. To set the right side balance shaft timing, the use of the timing mark and a #2 Phillips screwdriver is necessary. There is a bolt on the side of the block that is removed, and the screwdriver is inserted into it, to ensure that the weight is in the down position when the timing mark is lined up. 2. Make sure the oil pump gear is set correctly. Rotate the oil pump pulley a few times to set the gear. When the oil pump gear is in the correct position it will snap into place. Potential Causes: Improperly Installed Balance Shaft Belt Tech Tips: Just because the dot is lined up does not mean the balance shaft driven by the oil pump is timed correctly.