SERVICE MANUAL UPDATE SEC. 7A AUTOMATIC TRANSAXLE DIAGNOSIS

SUBJECT: SERVICE MANUAL UPDATE - SECTION 7 - AUTOMATIC TRANSAXLE DIAGNOSIS

MODELS AFFECTED: 1992 PARK AVENUE/ULTRA, RIVIERA AND LESABRE MODELS

CORRECTION:

----------- The 1992 "Automatic Transaxle Diagnosis" section for the 3800 used in the Park Avenue/Ultra, Riviera and LeSabres should include both RPO L27 and RPO L67 in the section title:

Section/HYDRA-MATIC 4T60-E (w/3800 TPI,MPI L27 and L67 SCI Engines) AUTOMATIC TRANSAXLE DIAGNOSIS

Please replace the following figures from your 1992 Automatic Transaxle Diagnosis section with the following revised figures:

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.