A/T - Increase In RPM During Light Throttle 2-3 Upshifts

Article No.
93-14-21

07/07/93

TRANSMISSION - A4LD - SLIGHT INCREASE OF ENGINE RPM ABOVE EXPECTED LEVELS DURING LIGHT THROTTLE 2-3 UPSHIFTS - NON ALTITUDE VEHICLES WITH 4.0L ENGINES

LIGHT TRUCK:
1990-92 AEROSTAR, RANGER
1991-92 EXPLORER

This TSB Article is being republished in its entirety to include a model applications chart and an illustration showing the location of the 2-3 backout spring.

ISSUE:
A slight increase of engine RPM, above normally expected levels, during light throttle 2-3 upshifts may be experienced. This is caused by the calibration of the 2-3 backout spring in bore 211 of the Main Control Assembly.

ACTION:








Refer to the attached transmission model chart and build date code, Figure 1. If the transmission model is listed, replace the existing 2-3 backout spring in bore 211 of the Main Control Assembly with a WHITE revised calibrated spring, part # F3TZ-7D230-A. Refer to Figure 2 for the 2-3 backout spring location, and refer to the 1992 Ranger/Explorer/Aerostar Service Manual, Section 07-01A, for service details.

CAUTION:
PERFORMING THIS TSB ON A UNIT NOT SHOWN IN THE CALIBRATION LIST MAY RESULT IN DAMAGE TO THE TRANSMISSION ASSEMBLY.

PART NUMBER PART NAME CLASS

F3TZ-7D230-A 2-3 Backout Spring B

OTHER APPLICABLE ARTICLES: NONE

SUPERSEDES: 93-5-15

WARRANTY STATUS:
Eligible Under Bumper To Bumper Warranty Coverage For 1992 Model Vehicles, Basic Warranty Coverage And Powertrain Warranty Coverage For All Other Models

OPERATION DESCRIPTION TIME
931421A Replace 2-3 Backout Spring 1.3 Hrs.

DEALER CODING
BASIC PART NO. CONDITION CODE
7D230 11

OASIS CODES:
501000, 504000, 590000