Exhaust System Replacement (With LP1)

Exhaust System Replacement (With LP1)

Removal Procedure
Caution: Refer to Exhaust Service Caution (Service Precautions) .
Caution: Refer to Protective Goggles and Glove Caution (Protective Goggles and Glove Warning) .





1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair) .
2. Disconnect the left and right bank 2 heated oxygen sensor (HO2S) electrical connectors (bank 1 shown, bank 2 similar).
3. Remove the HO2S wiring harnesses from the transmission case.




4. Remove the exhaust pipe nuts and separate the exhaust system from the catalytic converters.




5. Remove the muffler front hanger from the frame hanger rod.




6. Remove the tail pipe hangers from the muffler rods.




7. Remove the floor panel tunnel brace bolts.
8. Remove the floor panel tunnel brace from the floor panel.




9. With the aid of an assistant, lower the exhaust system.
10. Inspect and replace the exhaust system to catalytic converter seals if excessive wear or damage is noticed.




11. Remove the muffler rear hangers (2) from the muffler(s).
12. Remove the HO2S from the exhaust system. Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (Service and Repair) .



Installation Procedure





1. Install the HO2S to the exhaust system. Refer to Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 (Service and Repair) .
2. Install the muffler rear hangers (2) to the muffler(s).





Notice: Refer to Exhaust System Inspection Notice (Service Precautions) .


Notice: Refer to Flex Decoupler Notice (Flex Decoupler Notice) .

3. With the aid of an assistant, raise the exhaust system into position.
4. Install the exhaust system (muffler) nuts.




5. Install the muffler to the muffler rear hangers.




6. Install the muffler rear hanger to the hanger rod.





Notice: Refer to Fastener Notice (Fastener Notice) .

7. Install the exhaust pipe nuts.

Tighten the nuts to 22 N.m (16 lb ft).





8. Install the floor panel tunnel brace to the floor panel.
9. Install the floor panel tunnel brace bolts.

Tighten the floor panel tunnel brace bolts to 25 N.m (18 lb ft).





10. Connect the left and right bank 2 HO2S electrical connectors (bank 1 shown, bank 2 similar).
11. Install the HO2S wiring harnesses to the transmission case.
12. Lower the vehicle.