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A/T - Excessive Up/Down Shifting

84ford12

Article No. 84-15-16


TRANSMISSION - AUTOMATIC - AOD
- (4.9L) - EXCESSIVE UP/DOWN SHIFTING BETWEEN 3RD AND OVERDRIVE GEARS


LIGHT TRUCKS 1983-84 F & E SERIES

Vehicles exhibiting the subject condition usually may be serviced by properly adjusting the TV (throttle valve) cable.

Figure 33:




Figure 34:




1. For 1984 trucks only, fully retract the carburetor idle speed control (ISC) motor plunger as follows:
Locate the Self Test and Self Test Input connectors (both female). They are typically located in the engine compartment in the area of the passenger side fender wall. They are normally connected to other wires (Figure 33). Install a jumper wire between these two connectors as shown in Figure 34. Then turn the ignition key to the "On/Run" position (Do Not Start). Wait until plunger is fully retracted (about 10 seconds), then shut off ignition switch and remove the jumper.

Figure 35:




2. On 1983 and 1984 trucks, de-cam carburetor to the slowest idle (hot idle) position. NOTE: Carburetor must remain in this de-cammed position throughout the adjustment procedure for correct adjustment to be achieved (Figure 35).

Figure 36:




3. Locate the TV cable and cable adjuster mechanism on the engine bracket (which also mounts the accelerator cable) adjacent to the carburetor (Figure 36).

Figure 37:




Figure 38:




4. Unlock the cable adjuster by using a screwdriver to pry up the center section slide. The serrated center section should now be free to move (Figures 37 and 38).

Figure 39:




Figure 40:




5. With the TV cable still attached at the transmission and carburetor, install a retention spring to TV lever and rear of transmission case, or manually rotate the TV lever at the transmission clockwise until it stops. Lock, or have someone lock, the TV cable adjuster slide while the TV lever is held in the full clockwise position (Figures 39 and 40).
6. Check that the TV cable adjuster mechanism near the carburetor has not bottomed out in either direction. If the adjuster is not bottomed out, correct TV cable adjustment has been achieved, and no further reduction of shift busyness can be gained in the TV cable system. Remove retention spring (if used).
7. If the adjuster mechanism is bottomed out, remove the cable at the transmission lever. Hold the transmission TV lever at its full clockwise position against the transmission internal stop. If the cable end will attach to the ball stud on the TV lever, without moving either cable or lever, proper adjustment has been achieved.
8. If the cable end will not hook up to the TV lever without moving cable end or lever then loosen the transmission shift linkage bellcrank mounting bracket bolt at the transmission. Holding the bracket rearward, tighten the retaining bolt (20-30 ft.lbs.). Again, holding the TV lever at its full clockwise position, attempt to hook the cable end without moving the cable end or TV lever. If the cable end is too short (not far enough rearward) to reach the TV lever ball stud, replace the cable and adjust utilizing the above steps 2 through 7. If the cable end extends rearward beyond the TV lever ball stud, re-adjust the cable utilizing the above procedures steps 2 through 7.


PART NUMBER PART NAME CLASS

E3UZ-7F042-A TV Cable C


OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: 77332AT
TIME: 0.4 Hr. DLR. CODING: Basic Part No. 7F332 Code: 07 or 37 As applicable