For 1990-2009 cars

## Exhaust Manifold Replacement LLV

### Removal Procedure

Warning: Refer to Exhaust Service Warning in the Preface section.

Warning: Refer to Protective Goggles and Glove Warning in the Preface section.

1. Remove the exhaust seal. Refer to Exhaust Seal Replacement.
2. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement.
3. Remove the exhaust manifold bolts.
4. Remove the exhaust manifold and the gasket from the engine. Discard the gasket.

### Installation Procedure

1. Place a NEW exhaust manifold gasket on to the cylinder head.
2. Position the exhaust manifold to the cylinder head.
3. Apply threadlock GM P/N 12345493 (Canadian P/N 10953488) to the exhaust manifold bolt threads.
4. Install the exhaust manifold bolts.

Caution: Refer to Fastener Caution in the Preface section.

5. Tighten the exhaust manifold bolts in sequence to 20 N·m (15 lb ft).
6. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement.
7. Install the exhaust seal. Refer to Exhaust Seal Replacement.

## Exhaust Manifold Replacement LLR

### Removal Procedure

Warning: Refer to Exhaust Service Warning in the Preface section.

Warning: Refer to Protective Goggles and Glove Warning in the Preface section.

1. Remove the exhaust seal. Refer to Exhaust Seal Replacement.
2. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement.
3. Remove the exhaust manifold bolts.
4. Remove the exhaust manifold and the gasket from the engine. Discard the gasket.

### Installation Procedure

1. Place a NEW exhaust manifold gasket on to the cylinder head.
2. Position the exhaust manifold to the cylinder head.
3. Apply threadlock GM P/N 12345493 (Canadian P/N 10953488) to the exhaust manifold bolt threads.
4. Install the exhaust manifold bolts.

Caution: Refer to Fastener Caution in the Preface section.

5. Tighten the exhaust manifold bolts in sequence to 20 N·m (15 lb ft).
6. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement.
7. Install the exhaust seal. Refer to Exhaust Seal Replacement.