Sound Proofing / Insulation: Description and Operation

Insulation

Insulation is used as a sound-deadener to reduce exterior road and powertrain noises from the interior of the vehicle. Mastic insulators are also used as insulation. For information on the location of the mastic insulators, refer to Sound Deadeners and Insulators. Insulation is installed:

- as part of the carpet.
- under the roof panel.
- above and below the instrument panel.
- on the cowl sides.
- over the front and rear floor areas.
- in the B-pillar, C-pillar and D-pillar sections.
- rear wheel house area.

Other forms of insulation include:

- front tunnel stiffening pad.
- dash panel stiffener.
- rear wheelhouse mastic pads.