SERVICE MANUAL UPDATE SEC. 4 UPPER INTAKE MANIFOLD FASTENER

SUBJECT: UPPER INTAKE MANIFOLD FASTENER TORQUE SPECIFICATIONS WITH 4.3L ENGINE (VIN W)

MODELS: ALL LIGHT DUTY TRUCKS WITH 4.3L ENGINE (VIN W)

The following represents revised information for Section 4 of the Light Duty Truck Fuel and Emissions Manual, X-9236.

This information replaces the torque specification (upper intake manifold bolts and studs) found under UPPER INTAKE INSTALLATION on pages 4-79 and 4-80 of the 1992 Light Duty Truck Fuel and Emissions Manual, X-9236.

The torque specification for the 4.3L (VIN W, RPO L35) engine upper intake manifold bolts and studs is 10 N.m (88 lbs. in.).

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.