A/T - Revised Diagnosis

Number: 93-14-7A
Section: 7A
Date: OCT. 92
Corporate Bulletin No.: 277139
ASE No: A2

Subject:
HYDRA-MATIC 4L60 AUTOMATIC TRANSMISSION DIAGNOSIS

Model and Year:
1993 C/K, S/T TRUCKS AND M/L, G VANS

SERVICE UPDATE

TRANSMISSION APPLICATIONS:
1993 HYDRA-MATIC 4L60-E (M30)

TRANSMISSION MODELS:
ALL

SUBJECT:
1993 SECTION 7 HYDRA-MATIC 4L60-E AUTOMATIC TRANSMISSION DIAGNOSIS MANUAL UPDATE

VEHICLE APPLICATIONS:
C/K - TRUCKS UNDER 8600 Gvw S/T - TRUCKS WITH 4.3L M/L AND G VANS

BULLETIN COVERS:

New Product Information for 1993 HYDRA-MATIC 4L60-E transmissions. This information has been updated since publication of the 1993 Service Manual and should be noted accordingly. Be certain to familiarize yourself with these updates to properly diagnose the HYDRA-MATIC 4L60-E transmission.

DATE OF PRODUCTION CHANGE:

Beginning with Start of Production 1993, HYDRA-MATIC 4L60-E transmissions were built with the product changes explained in this bulletin.

SERVICE MANUAL REFERENCE:




















Figures 1 and 2 update the charts located in the Transmission Diagnosis Section of the 1993 Service Manuals. Figures 3-6 are charts that can be added to enhance the 1993 Service Manual Section 7A-14A.