SERVICE MANUAL UPDATE SEC. 4 UPPER INTAKE MANIFOLD FASTENER

SUBJECT: SMU - SECTION 4 - FUEL AND EMISSIONS MANUAL UPPER INTAKE MANIFOLD FASTENER TORQUE SPECS

VEHICLES AFFECTED: 1992 "S/T" TRUCK AND "M/L" VAN WITH 4.3L ENGINE (VIN W, RPO L35)

The following represents new and/or revised information for Section 4 of the Light Duty Truck Fuel and Emissions Manual (X-9236) or Section 4 at the rear of ST 369-92 (S/T) or ST 372-92 (M/L) Service Manuals.

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) or pages 4-79 and 4-80 in ST 369-92 (S/T) and ST 372-92 (M/L).

The torque specification for the 4.3L (VIN W - RPO L35) engine upper intake manifold bolts and studs is 1 0 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.