For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC 6E3 INTAKE PLENUM BOLT TORQUE

#### Models 1988-89 FIREBIRD 5.OL AND 5.7L Affected: (VIN CODES F AND 8) ENGINES

#### SERVICE MANUAL UPDATE

The intake manifold plenum/runner bolt torque specification has been revised for engines produced for the 1988 and 1989 model years. The new torque specification for the plenum/runner bolts is 34.0 N.m (25 lb.ft.). Service manuals should be changed to reflect this revision.

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.