Sienna SparkPlug Removal

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2009 Sienna spark Plug Removal Procedure

Text of Sienna SparkPlug Removal

  • IGNITION COIL AND SPARK PLUG

    COMPONENTS

    Fig. 3: Identifying Ignition Coil And Spark Plug Components With Torque Specification (1 Of 3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Page 1 of 17ENGINE IGNITION SYSTEM -2009 Toyota Sienna LE

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  • Fig. 4: Identifying Ignition Coil And Spark Plug Components With Torque Specification (2 Of 3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Page 2 of 17ENGINE IGNITION SYSTEM -2009 Toyota Sienna LE

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  • Fig. 5: Identifying Ignition Coil And Spark Plug Components With Torque Specification (3 Of 3) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    ON-VEHICLE INSPECTION

    NOTE: In this section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10C (14F) to 50C (122F). "Hot" means approximately 50C (122F) to 100C (212F).

    INSPECT IGNITION COIL ASSEMBLY 1.Check for DTCs. a.

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  • NOTE: If any DTC is present, perform troubleshooting in accordance with the procedures for that DTC.

    Remove the ignition coil assembly and spark plug. (See REMOVAL ). b.Check that sparks occur. c.

    Disconnect the 6 fuel injector connectors. 1.

    Fig. 6: Locating Fuel Injector Connectors Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Install the spark plugs to each ignition coil, and connect the ignition coil connectors. 2.Ground the spark plugs. 3.Check if a spark occurs at each spark plug while the engine is being cranked. 4.

    NOTE: Be sure to ground the spark plugs when checking. Replace the ignition coil if it receives an impact. Do not crank the engine for more than 2 seconds.

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  • Fig. 7: Checking Ground Spark Plugs Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Perform the spark test according to the flowchart below. d.Check that the ignition coil connector is securely connected. 1.

    Result

    RESULT CHART

    Result Proceed toNG Connect securelyOK Go to next step

    Perform a spark test on each ignition coil. 2.Replace the ignition coil with a normal one. 1.Perform the spark test again. 2.

    Result

    RESULT CHART

    Result Proceed toNG Go to next stepOK Replace ignition coil

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  • Check the spark plug (See ON-VEHICLE INSPECTION ). 3.

    Result

    RESULT CHART

    Result Proceed toNG Replace spark plugOK Go to next step

    Check the power supply to the ignition coil. 4.Turn the ignition switch to the ON position. 1.Check that there is battery voltage at the ignition coil positive (+) terminal. 2.

    Result

    RESULT CHART

    Result Proceed toNG Check wiring between ignition switch and ignition coilOK Go to next step

    Measure the resistance of the crankshaft position sensor (See REMOVAL ). 5.

    Result

    RESULT CHART

    Result Proceed toNG Replace crankshaft position sensorOK Go to next step

    Check the IGT signal from the ECM (See DTC P0351 IGNITION COIL "A" PRIMARY / SECONDARY CIRCUIT; DTC P0352 IGNITION COIL "B" PRIMARY / SECONDARY CIRCUIT; DTC P0353 IGNITION COIL "C" PRIMARY / SECONDARY CIRCUIT; DTC P0354 IGNITION COIL "D" PRIMARY / SECONDARY CIRCUIT; DTC P0355 IGNITION COIL "E" )

    6.

    Result

    RESULT CHART

    Result Proceed toNG Check ECMOK Repair wiring between ignition coil and ECM

    Using a 16 mm (0.63 in.) plug wrench, install the spark plugs. e.

    Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)

    Connect the 6 fuel injector connectors. f.Install the ignition coil assembly (See INSTALLATION ).g.

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  • INSPECT SPARK PLUG 2.

    NOTE: Never use a wire brush for cleaning. Never attempt to adjust the electrode gap on a used spark plug.

    Check the electrode. a.Using a megohmmeter, measure the insulation resistance. 1.

    Standard insulation resistance: 10 M or higher HINT:

    If the result is 10 M or less, clean the plug and measure the resistance again. If a megohmmeter is not available, perform the following simple inspection instead.

    Fig. 8: Measuring Insulation Resistance Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Alternative inspection method: b.Quickly accelerate the engine to 4000 rpm 5 times. 1.Remove the spark plugs. 2.Visually check the spark plug. 3.

    If the electrode is dry, the spark plug is functioning properly. If the electrode is damp, proceed to the next step.

    Check the spark plug for any damage to its threads and insulator. If there is damage, replace the spark plug.

    c.

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  • Recommended spark plug

    SPARK PLUG SPECIFICATION

    Manufacturer Spark Plug TypeDENSO FK20HR11

    NOTE: Use only the listed spark plug or equivalent to ensure engine performance and smooth driveability.

    Check the spark plug electrode gap. d.

    Maximum electrode gap for used spark plug: 1.4 mm (0.055 in.)

    If the gap is greater than the maximum, replace the spark plug.

    Electrode gap for new spark plug: 1.0 to 1.1 mm (0.039 to 0.043 in.)

    Fig. 9: Identifying Spark Plug Electrode Gap Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Clean the spark plugs. e.

    If the electrode has traces of wet carbon, clean the electrode with a spark plug cleaner and then dry it.

    Standard air pressure: 588 kPa (6 kgf*cm2 , 85 psi)

    Standard duration: 20 seconds or less

    HINT:

    Only use the spark plug cleaner when the electrode is free of oil. If the electrode has traces of oil, use gasoline to clean off the oil before using the spark plug cleaner.

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  • Fig. 10: Cleaning Spark Plugs Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Install the ignition coil assembly and spark plug. (See INSTALLATION ).f.

    REMOVAL

    DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 1.DRAIN ENGINE COOLANT 2.REMOVE FRONT WIPER ARM HEAD CAP (See REMOVAL ) 3.REMOVE FRONT WIPER ARM RH (See REMOVAL ) 4.REMOVE FRONT WIPER ARM LH (See REMOVAL ) 5.REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY (See REMOVAL ) 6.REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY (See REMOVAL ) 7.REMOVE NO. 1 COWL TOP TO COWL BRACE INNER (See REMOVAL ) 8.REMOVE COWL TOP PANEL SUB-ASSEMBLY OUTER FRONT (See REMOVAL ) 9.REMOVE NO. 1 ENGINE UNDER COVER 10.REMOVE V-BANK COVER SUB-ASSEMBLY (See REMOVAL ) 11.REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See REMOVAL ) 12.REMOVE INTAKE AIR SURGE TANK ASSEMBLY (See REMOVAL ) 13.

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  • REMOVE NO. 1 SURGE TANK STAY 14.Remove the 2 bolts and nut and disconnect the 2 harness clamps. a.

    Fig. 11: Locating Bolts, Nut And Harness Clamps Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Remove the bolt and No. 1 surge tank stay. b.

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  • Fig. 12: Locating No. 1 Surge Tank Stay Bolt Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    REMOVE IGNITION COIL ASSEMBLY 15.Disconnect the 6 ignition coil connectors. a.Remove the 6 bolts and 6 ignition coils. b.

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  • Fig. 13: Locating Ignition Coil Connectors And Bolts Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    REMOVE SPARK PLUG 16.Remove the 6 spark plugs. a.

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  • Fig. 14: Removing Spark Plugs Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    INSTALLATION

    INSTALL SPARK PLUG 1.Install the 6 spark plugs. a.

    Torque: 18 N*m (183 kgf*cm, 13 ft.*lbf)

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  • Fig. 15: Installing Spark Plugs Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    INSTALL IGNITION COIL ASSEMBLY 2.Install the 6 ignition coils with the 6 bolts. a.

    Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)

    Connect the 6 ignition coil connectors.b.

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  • Fig. 16: Locating Ignition Coil Connectors And Bolts Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    INSTALL NO. 1 SURGE TANK STAY 3.

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  • NOTE: DO NOT apply oil to the bolt listed below:

    BOLT TIGHTENING SPECIFICATION

    Tightening PartsNo. 1 surge tank stay and cylinder head cover

    Install the No. 1 surge tank stay with the bolt. a.

    Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)

    Fig. 17: Locating No. 1 Surge Tank Stay Bolt Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    Install the 2 bolts, 2 clamps, and nut. b.

    Torque: 8.3 N*m (84 kgf*cm, 7