Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: 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 front exhaust pipe assembly (TWC: Rear Catalyst), center exhaust pipe assembly and tail exhaust pipe assembly removal/installation are shown below.

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

PROCEDURE

1. REMOVE TAIL EXHAUST PIPE ASSEMBLY

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts and disconnect the tail exhaust pipe assembly from the center exhaust pipe assembly.

(b) Remove the tail exhaust pipe assembly from the 2 exhaust pipe supports.

(c) Remove the gasket from the center exhaust pipe assembly.

2. REMOVE TAIL EXHAUST PIPE ASSEMBLY LH

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts and disconnect the tail exhaust pipe assembly LH from the center exhaust pipe assembly.

(b) Remove the tail exhaust pipe assembly LH from the 2 exhaust pipe supports.

(c) Remove the gasket from the center exhaust pipe assembly.

3. REMOVE FRONT FLOOR COVER LH

(a) Remove the 3 bolts and 4 clips (A).

(b) Disengage the grommet (B) and 6 clips (C) to remove the front floor cover LH.

4. REMOVE FRONT FLOOR COVER RH

(a) Remove the 3 bolts and 4 clips (A).

(b) Disengage the grommet (B) and 6 clips (C) to remove the front floor cover RH.

5. REMOVE FRONT CENTER FLOOR BRACE

(a) Remove the 4 bolts and front center floor brace from the vehicle body.

6. REMOVE CENTER FLOOR CROSSMEMBER BRACE

(a) Remove the 4 bolts and center floor crossmember brace from the vehicle body.

7. REMOVE CENTER EXHAUST PIPE ASSEMBLY

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Remove the 2 bolts, 2 nuts and disconnect the center exhaust pipe assembly from the front exhaust pipe assembly (TWC: Rear Catalyst).

(b) Remove the center exhaust pipe assembly from the 2 exhaust pipe supports.

(c) Remove the gasket from the front exhaust pipe assembly (TWC: Rear Catalyst).

8. REMOVE BODY MOUNTING PLATE

(a) Remove the 6 bolts and body mounting plate.

9. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)

(a) Remove the 2 nuts and No. 1 exhaust pipe support bracket (for Lower Side).

10. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)

CAUTION:

To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

(a) Disconnect the 2 heated oxygen sensor connectors.

(b) Disengage the 2 wire harness clamps.

(c) Remove the 2 bolts, 2 nuts and disconnect the front exhaust pipe assembly (TWC: Rear Catalyst) from the exhaust manifold (TWC: Front Catalyst).

(d) Remove the front exhaust pipe assembly (TWC: Rear Catalyst) from the exhaust pipe support.

(e) Remove the 2 gaskets from the front exhaust pipe assembly (TWC: Rear Catalyst).

11. REMOVE HEATED OXYGEN SENSOR (for Bank 1)

Click here

12. REMOVE HEATED OXYGEN SENSOR (for Bank 2)

Click here

13. REMOVE TAIL PIPE BAFFLE (for Type B)

HINT:

• Perform this procedure only when replacement of the tail pipe baffle is necessary.
• If the tail pipe baffle is removed, replace it with a new one.
• Use the same procedure as for the tail exhaust pipe assembly LH.

(a) Remove the tail pipe baffle.