Resonator. Buick Roadmaster 1996

For 1990-2009 cars

## Resonator 4.3L w/ Intermediate Pipe

### Removal Procedure

1. Raise and suitably support the vehicle. Refer to General Vehicle Lifting and Jacking in General Information.
2. Remove the clamp nuts and the clamp.
3. Remove the resonator rods from the insulators.
4. Remove the resonator from the muffler.

Important: Carefully lift the resonator pipe over the axle, in order to prevent damaging the axle's brake line.

### Installation Procedure

1. Install the resonator into the muffler.
2. Slide the resonator pipe into the muffler outlet, until the tab on the resonator contacts the bottom of the slot, located on top of the muffler outlet.
3. Install the resonator rods into the insulators.
4. Install the clamp and the nuts.

• | Assemble the clamp around the resonator pipe.

• | Loosely install the nuts.

• | Tap the clamp toward the rear of the vehicle, in order to contact the tab on the resonator.

Tighten

• | Tighten the exhaust muffler clamp nuts to 35 N·m (26 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Lower the vehicle.

## Resonator 5.7L w/ Intermediate Pipe

### Removal Procedure

1. Raise and suitably support the vehicle. Refer to General Vehicle Lifting and Jacking in General Information.
2. Remove the ground strap nut and bolts from the right-hand resonator outlet, (for police vehicles only).
3. Remove the exhaust muffler clamp nuts and clamps.
4. Remove the resonator rods from the insulators.

Important: Carefully lift the resonator pipes over the axle, so as to prevent damaging the brake line on the axle.

5. Remove the resonators from the mufflers.

### Installation Procedure

1. Install the resonators onto the mufflers.
2. Slide the resonator pipes into the muffler outlets, until the tab on the resonators contact the bottom of the slots, located on top of the muffler outlets.
3. Install the resonator rods into the insulators.
4. Install the clamps.

• | Assemble the clamps around the resonator pipes.

• | Loosely install the nuts.

• | Tap the clamps toward the rear of the vehicle, in order to contact the tabs on the resonators.

5. Install the nuts on the clamps.

Tighten
Tighten the nuts on the clamps to 35 N·m (53 lb ft).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Install the bolt through the right-hand resonator outlet and ground strap, on police vehicles only.
7. Install the nut, for police vehicles only.

Tighten
Tighten the ground strap nut to 6 N·m (53 lb ft), on police vehicles only.

8. Lower the vehicle.