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Introduction IMPORTANT It is mandatory that the VVT-i gear actuator bolts, actuator center section alignment, and actuator body be inspected BEFORE performing this TSB. If no concerns are noted with these parts, this TSB does NOT apply. Some 2005 – 2009 model year vehicles with 2GR-FE engines may exhibit a ticking/clicking type noise from the cylinder head cover area which may be accompanied by a MIL “ON” and one or more VVT-i related Diagnostic Trouble Codes (DTCs). Please use the following repair procedure to address customer concerns. Inspection Procedure 1. Start the engine and listen for any ticking/clicking type noises coming from the VVT-i gear area of the engine. NOTE This condition may or may not be accompanied by one or more of the following DTCs stored in the Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM): • P0014: Camshaft Position “B” – Timing Advanced or System Performance (Bank 1) • P0015: Camshaft Position “B” Timing Over Retarded (Bank 1) • P0017: Crankshaft Position Camshaft Position Correlation (Bank 1 Sensor B) • P0018: Crankshaft Position Camshaft Position Correlation (Bank 2 Sensor A) • P0024: Camshaft Position “B” – Timing Over-Advanced or System Performance (Bank 2) • P0025: Camshaft Position “B” – Timing Over-Retarded (Bank 2) 2. Remove the cylinder head cover and inspect the exhaust VVT-i gear assembly on the affected cylinder bank. NOTE If NO concerns are found with the VVT-i gear actuator bolts, the actuator center section alignment, or actuator body, this TSB does NOT apply. Refer to Repair Manual procedures for further diagnosis. Repair Procedure 1. If any concerns are noted with the exhaust VVT-i gear bolts or actuator follow the four steps below: A. Replace the camshaft housing sub-assembly, exhaust camshaft, and exhaust VVT-i gear assembly on the affected bank. B. Inspect the intake VVT-i gear assembly and bolts on the affected bank. Replace the intake VVT-i gear assembly if necessary. C. Inspect the opposite bank exhaust VVT-i gear actuator and bolts. If any concerns are noted replace the opposite bank camshaft housing sub-assembly, exhaust camshaft, and exhaust VVT-i gear assembly. D. Inspect the opposite bank intake gear actuator assembly and bolts. Replace the intake VVT-i gear assembly if necessary. For complete disassembly procedures refer to the Technical Information System (TIS), applicable model and model year Repair Manual: • 2005 Avalon: Engine/Hybrid System – Engine Mechanical – “Engine Mechanical: Camshaft (LH Bank) / (RH Bank) (2GR-FE): Replacement” • 2006 / 2007 / 2008 / 2009 Avalon: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2007 / 2008 / 2009 Camry: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2008 / 2009 Highlander: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly” • 2006 / 2007 / 2008 / 2009 RAV4: Engine/Hybrid System – Engine Mechanical – “2GR-FE Engine Mechanical: Engine Unit: Disassembly”

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Description The Engine Cranks but Does Not Run diagnostic table assumes that the battery condition and the engine cranking speed are OK. If the battery condition and the cranking speed are not OK, refer to Diagnostic System Check – Engine Electrical in Engine Electrical for diagnosis. Make sure that there is adequate fuel in the fuel tanks. Diagnostic Aids • Check the duct work between the mass air flow (MAF) sensor and the throttle body for air leaks. • A malfunctioning MAF sensor may cause a no start or a stall after start. If you suspect this, disconnect the MAF sensor. The powertrain control module (PCM) will default to the speed density in order to calculate the load and the air flow. If this corrects the condition and the connections are OK, replace the MAF sensor. If the steps above check OK, refer to Symptoms . Test Description The numbers below refer to the step numbers on the diagnostic table. 4. It may be necessary to connect a battery charger to the battery for this step. If the battery state of charge is low, the scan tool may reset during the cranking test. 5. This step tests the ignition relay for proper operation. The ignition relay supplies voltage to the injectors and the ignition coils. When the ignition relay is not operating properly, a no start condition occurs. If the test lamp does not illuminate, this indicates the ignition relay is not suppling a voltage to the fuses. 6. The crankshaft position (CKP) sensor is located above the starter. 7. The camshaft position (CMP) sensor is located at the rear of the engine behind the intake manifold. 8. The ignition feed circuit for the CMP and CKP sensors is internally connected within the PCM. A short to ground on either circuit will cause a no start condition. 10. The fuel cap may need to be removed in order to hear if the fuel pump is operating. 12. At this point the engine should start. Refer to Hard Start for further diagnosis.

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Refer to Engine Controls Schematics MAF, Secondary Air Injection Pump Bypass Solenoid, IAC and Secondary AIR Pump . Circuit Description The AIR pump is used on this vehicle to lower tail pipe emissions on start-up. The powertrain control module (PCM) grounds the AIR pump relay control circuit, which energizes the AIR pump. The PCM also grounds the AIR solenoid valve control circuit, which energizes the AIR solenoid valve. The AIR solenoid valve opens allowing manifold vacuum to open the AIR control valves. The PCM enables both control circuits when AIR system operation is desired. When the AIR system is active, the AIR pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR control valves replace the conventional check valves. When the AIR system is inactive, the AIR control valves prevent air flow in either direction. DTC P0412 applies to the AIR solenoid control circuit. DTC P0418 applies to the AIR pump relay control circuit. DTC P0410 sets if an air flow problem is detected. The PCM will run two tests using the heated oxygen sensor (HO2S) voltage to diagnose the AIR system. Both tests have two parts. The passive test is performed during regular AIR pump operation. The passive test consists of the following: Passive Test Part 1 When the AIR system is enabled, the PCM monitors the HO2S voltage. If the HO2S voltage goes below a threshold, the PCM interprets this as an indication that the AIR system is operational. Passive Test Part 2 When the AIR system is disabled, the PCM monitors the HO2S voltage. The HO2S voltage should increase above a threshold and switch normally. If both of these tests indicate a pass, no further action is taken. If one of the above tests failed or is inconclusive, the diagnostic will proceed to test two. The active test is performed specifically for diagnostic purposes. Test two consists of the following: Active Test Part 1 During this test the PCM turns the AIR system on during closed loop operation. When the AIR system is activated, the PCM monitors the HO2S voltage. If the AIR system is operating properly, the HO2S voltage should go below a predetermined threshold. Active Test Part 2 The PCM turns the AIR system off. The HO2S voltage should return to above a rich threshold.

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TEST DE: FLEX FUEL (FF) SENSOR NOTE: After each service or repair procedure has been completed, reconnect all components. Clear DTCs and repeat QUICK TEST procedures to ensure all EEC- V systems are working properly and DTCs are no longer present. Diagnostic Aids Perform this test only when directed by QUICK TEST. This system test is intended to diagnose the following components and circuits: Flex Fuel (FF) sensor. Wiring harness circuits (FFS SIG, VPWR and PWR GND). Powertrain Control Module (PCM). NOTE: Type of fuel vehicle uses can be identified by checking calibration sticker on left door jam. See FUEL TYPE IDENTIFICATION table. Fuel type can also be identified by checking label on fuel filler door. 1) DTC P0176: Check FF Sensor VPWR Circuit This DTC indicates failure in the FF sensor and/or circuit. Possible causes for this fault are: Faulty FF sensor. Open or shorted wiring harness circuits. Fuel separation or contamination. Faulty Powertrain Control Module (PCM). Turn ignition off. Disconnect FF sensor connector. Turn ignition on. Measure voltage between negative battery terminal and VPWR terminal at FF sensor wiring harness connector. See Fig. 71 . If voltage is more than 10.5 volts, go to next step. If voltage is 10.5 volts or less, repair VPWR circuit.

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Some 2006-2007 Freestar and Monterey vehicles may experience a melted or damaged spark plug electrode, malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC’s) P030X, rough idle, engine knock/ping on acceleration. Pre-ignition (which yields these symptoms) may be caused by water entering the powertrain control module (PCM). ACTION: Follow the Service Procedure steps to correct the condition. SERVICE PROCEDURE 1. Remove PCM from vehicle. Refer to Workshop Manual (WSM), Section 303-14. 2. Remove the PCM cover by carefully bending back the four (4) retaining clips holding the galvanized metal cover to the top plate. (Figure 1) Figure 1 – Article 07-14-1 3. Look for evidence of water within the PCM (liquid water, rust, water stains or deposits). (Figure 2) If found – obtain a replacement PCM before continuing on to Step 4. If no water is found, continue on to step 4 with the vehicle’s original PCM. Figure 2 – Article 07-14-1 4. Set the PCM top plate in a clean, dry location where the circuitry will be protected from damage. 5. With the PCM cover removed, drill a 1/4″ hole on each of the four (4) corners of the PCM cover. Get as close to the corner as possible. (Figure 3) Figure 3 – Article 07-14-1 6. De-burr the edges on both inside and outside surfaces. (Figure 3) Be sure to vacuum off all chips and wipe off all metal dust and any machining oil. 7. Clean the surfaces of the PCM cover with Motorcraft ZC-21 (Metal Surface Cleaner) or equivalent. Also clean the edges of the PCM top plate. The metal surfaces must be completely clean before proceeding to Step 8. 8. Apply Motorcraft TA-29 Ultra Silicone Sealant to all edges depicted. (Figure 4, 5, 6, 7) Proceed directly to Step 9 – do not let the sealant skin over. NOTE: Motorcraft TA-32 can NOT be used since its constituents may damage the PCM circuitry.