SERVICE MANUAL UPDATE SEC. 7A AUTOMATIC TRANSAXLE DIAGNOSIS

Subject: SERVICE MANUAL UPDATE - SECTION 7A AUTOMATIC TRANSAXLE DIAGNOSIS

Models Affected: 1992 BONNEVILLE, AND TRANS SPORT MODELS WITH 3800 ENGINE

TRANSAXLE APPLICATIONS:

HYDRA-MATIC 4T60-E (Ml3)

TRANSAXLE MODELS: 2BTW,2CXW,2CZW,2CLW,2YMW, 2YLW,2CSW,2YZW,2WAW,2BYW, 2CTW,2PHW,2YPW

CORRECTION: (For Bonneville and Trans Sport models with 3800 Engines Only)

The 1992 "Automatic Transaxle Diagnosis" section for the 3800 used in the Bonneville and Trans Sport models 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:

(Figures 1 through 7)

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.