Heat Shields

HEAT SHIELDS
The Oldsmobile with a L47 engine and the Buick with the L67 engine use heat shields that are attached to the underside of the body. They are there to reflect the heat of the exhaust system away from the body.

Caution: Damage may occur to related components if a removed heatshield is not reinstalled.

The post catalytic converter oxygen sensor is protected by a heat shield which is attached to the underbody of the vehicle.