For 1990-2009 cars

## Catalytic Converter Replacement LE5

### Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor 2 Replacement .
3. Remove the catalytic converter to the resonator pipe nuts.
4. Remove the catalytic converter to the exhaust manifold nuts.
5. Remove the catalytic converter.
6. Remove and discard the exhaust gaskets.
7. Clean the flange mating surfaces of any remaining gasket material.

### Installation Procedure

1. Install a NEW gasket onto the exhaust manifold studs.
2. Install the catalytic converter to the exhaust manifold.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the exhaust manifold to the catalytic converter nuts.

Tighten
Tighten the catalytic converter nuts to 50 N·m (37 lb ft).

4. Install a NEW gasket onto the resonator pipe studs.
5. Install the catalytic converter to resonator pipe nuts.

Tighten
Tighten the resonator pipe nuts to 30 N·m (22 lb ft).

6. Install the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor 2 Replacement .
7. Inspect the exhaust system for leaks.

## Catalytic Converter Replacement L61

### Removal Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the wheel drive shaft heat shield. Refer to Wheel Drive Shaft Heat Shield Replacement .
3. Remove the heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor 2 Replacement .
4. Remove the catalytic converter to the resonator pipe nuts.
5. Remove the catalytic converter to exhaust manifold nuts.
6. Remove the catalytic converter.
7. Discard the exhaust gaskets.
8. Clean the flange mating surfaces of any remaining gasket material.

### Installation Procedure

1. Install a NEW gasket onto the exhaust manifold studs.
2. Install the catalytic converter to the exhaust manifold.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the exhaust manifold to the catalytic converter nuts.

Tighten
Tighten the catalytic converter nuts to 50 N·m (37 lb ft).

4. Install a NEW gasket onto the resonator pipe studs.
5. Install the catalytic converter to the resonator pipe nuts.

Tighten
Tighten the resonator pipe nuts to 30 N·m (22 lb ft).

6. Install the (HO2S). Refer to Heated Oxygen Sensor 2 Replacement .
7. Install the wheel drive shaft heat shield. Refer to Wheel Drive Shaft Heat Shield Replacement .
8. Inspect the exhaust system for leaks.

## Catalytic Converter Replacement LNF

Callout | Component Name
--- | ---

#### Preliminary Procedure

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the HO2S Sensor from the Catalytic Converter. Refer to Heated Oxygen Sensor 2 Replacement .

1 | Turbocharger Exhaust Pipe Nut (Qty: 4) Notice: Refer to Fastener Notice in the Preface section. Tighten 50 N·m (37 lb ft)
2 | Catalytic Converter Nut (Qty: 3) Tighten 46 N·m (34 lb ft)
3 | Catalytic Converter

#### Procedure

1. Disconnect any electrical connectors as needed.
2. Transfer any parts as needed.