For 1990-2009 cars

# OIL LEAK AT ROCKER COVER (INSTALL GASKET PROPERLY)

#### VEHICLES AFFECTED: 1985-86 3.04 Engines (Engiiie Code L) and 1986Engines (Engine Codes B and 3)

Care should be taken when installing or replacing rocker arm cover gaskets on the above engines. The gasket is preformed to fit the contour of the rocker arm cover and should be installed accordingly. (see illustration).

Failure to correctly install the gasket could create a path for leaks in this area.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.