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A/T - Increase In RPM During Light Throttle 2-3 Upshifts|Page 3647 > < A/T - A4LD Harsh 2nd - 3rd Gear Backout Upshift|Page 3642

Aerostar AWD V6-245 4.0L (1990)

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Valve Body: Customer Interest
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:

A/T - Increase In RPM During Light Throttle 2-3 Upshifts|Page 3647 > < A/T - A4LD Harsh 2nd - 3rd Gear Backout Upshift|Page 3642