Toyota Prius: Exhaust Pipe

• Removal
• Installation

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 and tail exhaust pipe assembly 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
Gas leak from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.

CAUTION:

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

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	TAIL EXHAUST PIPE ASSEMBLY	17430		-	-
2	REMOVE FRONT FLOOR COVER LH	58166A		-	-
3	REMOVE FRONT FLOOR COVER RH	58165C		-	-
4	FRONT FLOOR CENTER BRACE	57533B	-	-	-
5	HEATED OXYGEN SENSOR	89465	-	-	-
6	FRONT EXHAUST PIPE ASSEMBLY	17410		-	-

●

Non-reusable part

-

-

CAUTION / NOTICE / HINT

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.

2. REMOVE FRONT FLOOR COVER LH

Click here

3. REMOVE FRONT FLOOR COVER RH

Click here

4. REMOVE FRONT FLOOR CENTER BRACE

Click here

5. REMOVE HEATED OXYGEN SENSOR

Click here

6. REMOVE FRONT EXHAUST PIPE ASSEMBLY

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

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	FRONT EXHAUST PIPE ASSEMBLY	17410		-	-
2	HEATED OXYGEN SENSOR	89465	-	-	-
3	TAIL EXHAUST PIPE ASSEMBLY	17430		-	-
4	FRONT FLOOR CENTER BRACE	57533B	-	-	-
5	REMOVE FRONT FLOOR COVER RH	58165C	-	-	-
6	REMOVE FRONT FLOOR COVER LH	58166A	-	-	-
7	INSPECT FOR EXHAUST GAS LEAK	-	-	-

	N*m (kgf*cm, ft.*lbf): Specified torque	●	Non-reusable part
*	For use with SST	-	-

PROCEDURE

1. INSTALL FRONT EXHAUST PIPE ASSEMBLY

*1	Exhaust Manifold	*2	Gasket
*a	Wooden Block	*b	Plastic Hammer

(1) Using a vernier caliper, measure the free length of the compression springs.

Standard Length	43 mm (1.69 in.)
Minimum Free Length	41.5 mm (1.63 in.)

If the free length is less than the minimum, replace the compression spring.

(2) Temporarily install a new gasket to the exhaust manifold.

(3) Using a plastic hammer and wooden block, tap in the gasket until its surface is flush with the exhaust manifold.

*1	Exhaust Manifold	*2	Front Exhaust Pipe Assembly
*3	Gasket	-	-
*a	Space between Flanges: 8.5 mm (0.335 in.)	-	-

(1) Connect the front exhaust pipe assembly to the 2 exhaust pipe supports.

(2) Install the front exhaust pipe assembly to the exhaust manifold with the 2 compression springs and 2 bolts.

Torque:

43 N·m {438 kgf·cm, 32 ft·lbf}

(3) After installation, check that the space between the flanges of the exhaust manifold and front exhaust pipe assembly is consistent front-to-rear and left-to-right.

2. INSTALL HEATED OXYGEN SENSOR

Click here

3. INSTALL TAIL EXHAUST PIPE ASSEMBLY

*1	Front Exhaust Pipe Assembly	*2	Gasket
*a	Wooden Block	*b	Plastic Hammer

(1) Using a vernier caliper, measure the free length of the compression springs.

Standard Length	40 mm (1.57 in.)
Minimum Free Length	38.5 mm (1.52 in.)

If the free length is less than the minimum, replace the compression spring.

(2) Temporarily install a new gasket to the front exhaust pipe assembly.

(3) Using a plastic hammer and wooden block, tap in the gasket until its surface is flush with the front exhaust pipe assembly.

*1	Front Exhaust Pipe Assembly	*2	Tail Exhaust Pipe Assembly
*3	Gasket	-	-
*a	Space between Flanges: 6.5 mm (0.256 in.)	-	-

(1) Connect the tail exhaust pipe assembly to the 4 exhaust pipe supports.

(2) Install the tail exhaust pipe assembly to the front exhaust pipe assembly with the 2 compression springs and 2 bolts.

Torque:

43 N·m {438 kgf·cm, 32 ft·lbf}

(3) After installation, check that the space between the flanges of the tail exhaust pipe assembly and front exhaust pipe assembly is consistent front-to-rear and left-to-right.

4. INSTALL FRONT FLOOR CENTER BRACE

Torque:

27 N·m {275 kgf·cm, 20 ft·lbf}

5. INSTALL FRONT FLOOR COVER RH

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

6. INSTALL FRONT FLOOR COVER LH

Torque:

7.5 N·m {76 kgf·cm, 66 in·lbf}

7. INSPECT FOR EXHAUST GAS LEAK

If gas is leaking, tighten the areas necessary to stop the leak. Replace damaged parts as necessary.

(a) Perform "Inspection After Repair" after repairing an exhaust gas leak.

Click here