For 1990-2009 cars

# SERVICE MANUAL UPDATE SEC. 8A MISLABELED BLOCK HTR./VENT HTR

#### SUBJECT: SMU - SECTION 8A (MISLABELED BLOCK HEATER, SHOULD BE VENT HEATER)

#### VEHICLES AFFECTED: 1992 "L,N" CARS WITH 2.3L ENGINE (VIN A, D) PONTIAC, BUICK, OLDSMOBILE N-CARS CHEVROLET L-CAR

In Section 8A of the 1992 "N" and "L1" Service Manuals, the component engine vent heater or engine block heater is mislabeled. It should read crankcase vent heater in all 1992 "N" and "L" Service Manuals. Please correct this condition by changing the label of engine vent heater/engine block heater to crankcase vent heater on the following pages:

Chevrolet "L" Pontiac "N" and Buick "N" Oldsmobile "N" ------------- --------------- ---------

8A - CONTENTS 8A - CONTENTS 8A - CONTENTS 8A - 1 - 0 8A - 1 - 0 8A - 1 - 0 8A - 11 - 1 8A - 11 - 1 8A - 11 - 1 8A - 11 - 6 8A - 11 - 6 8A - 11 - 6 8A - 14 - 2 8A - 14 - 1 8A - 14 - 1 8A - 32 - 0 8A - 32 - 0 8A - 32 - 0 8A - 32 - 1 8A - 32 - 1 8A - 32 - 1 8A - 200 - 0 8A - 200 - 0 8A - 200 - 1 8A - 200 - 1

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.