F 250 2WD Pickup V8-7.3L DSL (1990)
Band: All Technical Service Bulletins
A/T - AOD Delayed Shift Times
Article No. 91-16-12
08/07/91
TRANSMISSION - AUTOMATIC - AOD - DELAYED 3-4/4-3 SHIFTS OR OVERDRIVE BAND/FORWARD CLUTCH REPEAT REPAIRS
FORD:
1989-90 CROWN VICTORIA, MUSTANG, THUNDERBIRD
LINCOLN-MERCURY: 1989-90 COUGAR, GRAND MARQUIS, MARK VII, TOWN CAR
LIGHT TRUCK:
1989-90 BRONCO, E-150, E-250, F-150
This TSB article is being republished in its entirety to include Bronco and E-250 in the Light Truck application line.
ISSUE:
Increased shift times may be experienced during certain continuous driving conditions. When frequent 3-4/4-3 shifts or high ambient
temperatures are encountered, overdrive band engagement or release times may increase. This slip at the friction surface creates excessive
heat and may eventually fail the band. Forward clutch failure may also occur as the forward clutch operation is synchronized with the
overdrive band during 3-4/4-3 shifting.
ACTION:
Whenever servicing the overdrive band or forward clutch, also replace the main control assembly with a 1991 service main control. Refer
to the following AOD Main Control Application Chart. This chart reflects shift calibration revisions to the 1991 main control level.
AOD MAIN CONTROL COMPLEXITY CHART
MAIN
DELETE
ADD SERVICE
CONTROL
SERVICE PART
PART NO.
I.D.
NO.
MAIN CONTROL I.D.
F1TZ-7A100-C
GNO
F0TZ-7A100-G
DOA, MPA
E9TZ-7A100-J
MRA
F1TZ-7A100-B
GNN
F0TZ-7A100-F
DOX, MPX
E9TZ-7A100-H
MRX
F1AZ-7A100-D
JNF
E9AZ-7A100-B
COH, VPH, VRH, RRH
F1SZ-7A100-B
BNJ
E9SZ-7A100-B
URL, URY, SRY
F0SZ-7A100-B
GPJ, UPJ
F1AZ-7A100-E
JFK
F0AZ-7A100-D
CJH
E9AZ-7A100-G
VGH, RGH, WFR
E5AZ-7A100-D
BER, OER, ODR
F1LY-7A-A
DNX
F0LY-7A100-B
BOC, BOX, PPC
E9LY-7A100-A
PRX
E9LY-7A100-B
PRC
F1SZ-TA100-A
ANV
F0SZ-7A100-A
TPM
E9SZ-7A100-D
TRM, TRF
PART NUMBER
PART NAME
CLASS
F1TZ-7A100-C
Main Control
B
F1TZ-7A100-B
Main Control
B
F1AZ-7A100-D
Main Control
B
F1SZ-7A100-B
Main Control
C
F1AZ-7A100-E
Main Control
C
F1LY-7A100-A
Main Control
B
F1SZ-7A100-A
Main Control
C
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES:
91-5-6
WARRANTY STATUS:
Eligible Under Basic Warranty Coverage, Major Component Warranty Coverage, Powertrain Warranty Coverage
OPERATION DESCRIPTION
TIME
911612A
Replace Main Control Valve
0.6 Hr.
Body To AOD - Cars
911612B
Remove And Install AOD
3.1 Hr.
Transmission Assembly -
Crown Victoria, Grand