Toyota Avalon (XX50): Ignition Coil And Spark Plug

Components

COMPONENTS

ILLUSTRATION

*1	IGNITION COIL ASSEMBLY	*2	SPARK PLUG
*3	V-BANK COVER SUB-ASSEMBLY	*4	VACUUM HOSE
	N*m (kgf*cm, ft.*lbf): Specified torque	-	-

Installation

INSTALLATION

PROCEDURE

1. INSTALL SPARK PLUG

Click here

2. INSTALL IGNITION COIL ASSEMBLY

HINT:

Perform "Inspection After Repair" after replacing an ignition coil assembly.

Click here

(a) Install the 3 ignition coil assemblies to the cylinder head cover sub-assembly with the 3 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

NOTICE:

If an ignition coil assembly has been struck or dropped, replace it.

HINT:

Install the same parts to their original positions.

(b) Connect the 3 ignition coil assembly connectors.

(c) Engage the 2 wire harness clamps.

(d) Engage the 4 clamps to install the vacuum hose to the intake air surge tank assembly.

(e) Install the 3 ignition coil assemblies to the cylinder head cover sub-assembly LH with the 3 bolts.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

NOTICE:

If an ignition coil assembly has been struck or dropped, replace it.

HINT:

Install the same parts to their original positions.

(f) Connect the 3 ignition coil assembly connectors.

3. INSTALL V-BANK COVER SUB-ASSEMBLY

Click here

4. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing an ignition coil assembly or spark plug.

Click here

Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during ignition coil assembly or spark plug removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Replacement of ignition coil assembly Replacement of spark plug	Inspection after repair	Poor idle, etc. Engine start function, etc.

PROCEDURE

1. REMOVE V-BANK COVER SUB-ASSEMBLY

Click here

2. REMOVE IGNITION COIL ASSEMBLY

(a) Disconnect the 3 ignition coil assembly connectors.

(b) Remove the 3 bolts and 3 ignition coil assemblies from the cylinder head cover sub-assembly LH.

NOTICE:

If an ignition coil assembly has been struck or dropped, replace it.

HINT:

Arrange the removed parts in the correct order.

(c) Disengage the 4 clamps to separate the vacuum hose from the intake air surge tank assembly.

(d) Disengage the 2 wire harness clamps.

(e) Disconnect the 3 ignition coil assembly connectors.

(f) Remove the 3 bolts and 3 ignition coil assemblies from the cylinder head cover sub-assembly. NOTICE: If an ignition coil assembly has been struck or dropped, replace it. HINT: Arrange the removed parts in the correct order.

3. REMOVE SPARK PLUG

Click here