GM Service Manual Online
For 1990-2009 cars only

REVISED TORQUE VALVES FOR FUEL LINE NUTS AT TBI UNIT

VEHICLES AFFECTED: 1989 "A, N" 2.5L (VIN R, U) ENGINES

This bulletin serves to revise the torque specifications for the 2.5L (VIN R & U) fuel line nuts and TBI inlet/outlet nuts listed in Section "6E2-C2", "Driveability and Emissions" in the 1989 "A" and "N" Service Manuals.

The new specifications are listed below:

TBI Fuel Inlet/Outlet Nuts - 41.0 N.m (30 ft.lbs.) Fuel Feed and Return Line Nuts at TBI Unit - 27.0 N.m (20 ft. lbs.)

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.