Exhaust System: Service and Repair

Exhaust system, removing and installing

Notes:
^ Align exhaust system free of stress, Refer to Exhaust System, Adjusting.
^ Checking exhaust system for leaks, Refer to Exhaust System, Testing and Inspection.
^ Separation point between center silencer and rear silencer, Refer to Fig. 1.
^ Seals and nuts should always be replaced.
^ Tightening torque, cross member to floor assembly.25 Nm (18 ft. lbs.).
^ The retaining loops for the center and rear silencers are the same in design, but have different elasticity, Refer to parts Supplier.

1. Exhaust manifold, left
2. Exhaust manifold gaskets
^ Metal side of gasket must face toward cylinder head
3. Exhaust manifold, right
4. Heated Oxygen Sensors (H02S)
^ Bank 1. H02S
^ Bank 2- H02S 2
^ 50 Nm (37 ft. lbs.)
^ Coat threads with G5 grease
^ G5 must not get into slots on H02S probe
5. Nut
^ Always replace
^ 25 Nm (18 ft. lbs.)
6. Front exhaust pipe with Three Way Catalytic Converter (TWC), right
7. Hanger
^ Attachment, Refer to Fig. 2 and Fig. 3
8. Double clamp
^ Tighten evenly, 40 Nm (30 ft. lbs.)
^ Installation position, Refer to Exhaust System, Adjustments.
^ Replace each time after loosening connection
9. Retaining loop
^ Visually identical to retaining loop - 11 but with different elasticity
^ Bolts to fasten bracket to floor assembly: 25 Nm (18 ft. lbs.)
10. Center silencer
11. Retaining loop
^ Visually identical to retaining loop - 9 -, but with different elasticity
^ Bolts to fasten bracket to floor assembly: 25 Nm (18 ft. lbs.)
12. Rear silencer
^ Adjusting exhaust system pre-load, Refer to Exhaust System, Adjusting.
^ Align tailpipes, Refer to Exhaust System, Adjusting.
13. Three Way Catalytic Converter (TWC), left
14. Bolt
15. Seal
16. Nut
^ Always replace
^ 25 Nm (18 ft. lbs.)
17. Nut
^ Always replace
^ 25 Nm (18 ft. lbs.)
18. Washer
19. Left-front exhaust pipe





Fig. 1 Separation point between center silencer and rear silencer
A separation point is provided for replacing the center silencer or rear silencer separately.
- Separate connecting pipe between center silencer and rear silencer at location identified by groove.
a - Approximately 240 mm (9 1/2 inch)
b - Approximately 200 mm (8 inch)
Two short clamps are provided for connecting the separate center and rear silencers.
^ Installed position of rear double clamp, Refer to Exhaust System, Adjusting.
^ Bolt points must not be deeper than the lower edge of the clamping sleeve.
- Align exhaust system, Refer to Exhaust System, Adjusting.





Fig. 2 Attachment of Three Way Catalytic Converter (TWC)
1. Three Way Catalytic Converter (TWC), left
2. Transmission
3. Bolt, 25 Nm (18 ft. lbs.)
4. Screw and washer assembly M8 x 20 Tightening torque- 25 Nm (18 ft. lbs.)
5. Three Way Catalytic Converter (TWC), right
6. Bolt M8x48
7. Washer
8. Spacer
9. Tab
10. Nut, 25 Nm (18 ft. lbs.)
11. Compression spring
12. Screw and washer assembly M8 x 40 Tightening torque- 25 Nm (18 ft. lbs.)
13. Bolt (to fasten shield to gear selector mechanism)
14. Bracket
15. Spacer tube
16. Buffer





Fig. 3 Installed position of straps during assembly
Arrow points toward front of vehicle.
Distance -A- = 3 mm (1/8 inch).