Don't tighten the plugs with excessive force. Exceeding tightening torque can damage the thread connection. Be careful when working with a spark plug wrench. Its skewing can cause damage to the threaded connection.
Step 59
Install the ignition coils to the spark plug wells. Make sure you hear a click indicating that it is locked in place.
Replacement: spark plugs – Lexus RX XU30. Tip from AUTODOC experts:
Follow the installation sequence.
Step 60
Tighten the ignition coil fastening. Use a drive socket #10. Use a torque wrench. Tighten it to 8 nm torque.
Step 61
Plug in the connectors of the ignition coils.
Step 62
Clean the intake manifold mounting seats. Use all-purpose cleaning spray.
Step 63
Remove the microfibre cloth from the engine intake channels.
Step 64
Clean the intake manifold. Use all-purpose cleaning spray.
Step 65
Install the intake manifold.
Step 66
Tighten the intake manifold fasteners. Use HEX No.H8. Use a ratchet wrench.
Step 67
Tighten the intake manifold fasteners. Use a drive socket #14. Use a ratchet wrench.
Step 68
Tighten the intake manifold fasteners. Use a drive socket #12. Use a ratchet wrench.
Step 69
Tighten the intake manifold fasteners. Use a drive socket #14. Use a torque wrench. Tighten it to 15 nm torque.
Step 70
Tighten the intake manifold fasteners. Use HEX No.H8. Use a torque wrench. Tighten it to 15 nm torque.
Step 71
Remove the microfibre towel from the intake manifold.
Step 72
Attach the throttle body to the intake manifold.
Step 73
Tighten the throttle valve fasteners. Use a drive socket #12. Use a ratchet wrench.
Step 74
Attach the crankcase ventilation hose to the engine cover at the left.
Step 75
Install the clamp of the crankcase ventilation hose.
Step 76
Attach the ground wire connector.
Step 77
Attach the throttle valve connectors.
Step 78
Attach the vacuum sensor connector.
Step 79
Screw in the vacuum system bracket. Use a drive socket #12. Use a ratchet wrench.
Step 80
Attach the vacuum sensor hose.
Step 81
Screw in the air filter housing bracket. Use a drive socket #12. Use a ratchet wrench.
Step 82
Remove the microfibre towel from the throttle body.
Step 83
Install the air filter pipe.
Step 84
Screw in the clamp that connects the air filter hose to the throttle body. Use a drive socket #10. Use a ratchet wrench.
Step 85
Install the air filter box.
Step 86
Screw in the air filter box fasteners. Use a drive socket #10. Use a ratchet wrench.
Step 87
On the right side, attach the PCV valve hose to the engine cover.
Step 88
Install the clamp of the crankcase ventilation hose. Use clic-R collar pliers.
Step 89
Reinstall the air filter housing.
Step 90
Screw the filter housing fastening bolts. Use a drive socket #10. Use a ratchet wrench.
Step 91
Screw in the air intake resonator clamp to the air filter housing. Use a drive socket #10. Use a ratchet wrench.
Step 92
Plug in the mass air flow sensor conntector.
Step 93
Install the battery cover. Reinstall the battery cover clips.
Step 94
Install the engine cover. Reinstall the engine cover clips.
Step 95
Install the protective cover. Reinstall the pop clips of the protective cover.
Step 96
Insert the filter cartridge into the filter housing. Make sure that the filter edge fits tight to the housing.
Check out the correct location of the filter element. Do not skew.During installation, make sure to prevent dust and dirt from getting into the air filter housing.
Step 97
Clean the air filter cover and housing.
Step 98
Reinstall the air filter cover. Fasten it.
Step 99
Press the air filter cover clips into place.
Step 100
Install the air duct housing.
Step 101
Secure the fastener of the air intake duct. Use a drive socket #10. Use a ratchet wrench.
Step 102
Screw the fastening clamp connecting the air duct to the air filter housing. Use a drive socket #10. Use a ratchet wrench.
Step 103
Install the radiator support cover.
Step 104
Install the radiator support cover clips.
Step 105
Run the engine for a few minutes. This is necessary in order to make sure that the component operates properly.
Step 106
Shut off the engine.
Step 107
Remove the fender protection cover.
Step 108
Close the hood.
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