AMC Coupes/Sedans/Wagons 1975-1988 Repair Information

Adjustments

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LOW & REVERSE BAND All 904; 1978 and Later 998



See Figure 1

Click image to see an enlarged view

Fig. Fig. 1: Common automatic transmission adjustment points and controls

  1. Drain the fluid and remove the pan.
  2.  
  3. On 6-cylinder models:
    1. Remove the adjusting screw locknut.
    2.  
    3. Tighten the adjusting screw to 41 inch lbs.
    4.  

  4.  

On some early Pacers, and all 998, torque the screw to 72 inch lbs.

  1. Back the adjusting screw out 7 turns. (3 1 / 4 turns on early 1975 Pacers).
  2.  
  3. Hold the adjusting screw, install the locknut, and tighten the locknut to 35 ft. lbs.
  4.  

Heavy duty fleet versions of the 258 six and 304 V8 use the same transmission as the 360 and 401 V8. Thus, these models would follow the adjustment procedure for the 360 and 401 V8.

  1. On V8 models:
    1. Loosen the locknut and back it off 5 turns.
    2.  
    3. Tighten the adjusting screw to 72 inch lbs.
    4.  
    5. Back the adjusting screw out 4 turns with the 304 V8 and 2 turns with the 360 and 401 V8's.
    6.  
    7. Hold the adjusting screw and tighten the locknut to 35 ft. lbs.
    8.  

  2.  
  3. Install the pan with a new gasket. Tighten the screws to 150 in.lb. Fill the transmission as explained in General Information and Maintenance .
  4.  

LOW & REVERSE BAND All 727 and 1975-77 998



See Figure 2

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Fig. Fig. 2: Location of the low and reverse band adjusting screw locations

  1. Raise the car, drain the transmission, and remove the pan.
  2.  
  3. Loosen the locknut on the adjusting screw and back off the locknut about 5 turns. Be sure the adjusting screw is free to turn.
  4.  
  5. Tighten the adjusting screw to exactly 72 inch lbs. of torque.
  6.  
  7. Back off the adjusting screw exactly to specification. Hold the adjusting screw to keep it from turning and tighten the locknut to 30-35 ft. lbs.

    998 4 turns
     
    727 2 turns
     

  8.  
  9. Install the pan using a new gasket. Tighten the pan bolts to 150 inch lbs. Refill the transmission with DEXRON®II fluid.
  10.  

KICK-DOWN BAND



The adjustment screw for the kickdown band is located on the left side of the transmission, above the throttle and manual linkage levers.

  1. Loosen the locknut and back it off 5 turns.
  2.  
  3. Using a torque wrench, tighten the screw to 72 inch lbs.
  4.  
  5. Back off the adjusting screw:

    998 and 727, 1972-77 2 1 / 2 turns
     
    904 2 turns
     
    998, 1978 and later 2 turns
     

  6.  

1978 2 1 / 2 turns

  1. Hold the adjusting screw and tighten the locknut to 29 ft. lbs.
  2.  

SHIFT LINKAGE



The function of this adjustment is to make sure that the transmission is fully engaged in each range position. If this is not the case, there could be severe damage due to slippage.

  1. With the engine off, place the selector in Park and the transmission shifting lever in the Park detent.
  2.  
  3. Adjust the shift rod, as necessary, for a free pin fit.
  4.  
  5. See that the steering column lock and the Neutral safety switch operate properly.
  6.  

THROTTLE LINKAGE



This adjustment positions a valve which controls shift speed, shift firmness, and part-throttle downshift sensitivity.

All Except 4-151 Engines

  1. Detach the throttle control rod spring and hook it so that the throttle control lever is held forward against its stop.
  2.  
  3. Block the choke open and set the carburetor throttle linkage off the fast idle cam.
  4.  

On models with a throttle solenoid valve, energize the solenoid and open the throttle halfway so that the solenoid will lock and then return the throttle to the idle position.

  1. Loosen, but do not remove, the retaining bolt on the throttle control rod adjusting link.
  2.  
  3. On V8's, remove the spring clip and nylon washer; leave them in place on sixes.
  4.  
  5. On sixes, pull on the end of the link to remove all lash. On V8s, push on the end of the link to remove all lash.
  6.  
  7. Tighten the retaining bolt while performing Step 5.
  8.  
  9. Replace the throttle control rod spring in its original location. On V8s, install the nylon washer and spring clip on the retaining rod before replacing the spring.
  10.  

4-151 Engines See Figure 3

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Fig. Fig. 3: Release the T-shaped clamp with a prytool to unlock the throttle control cable4-cylinder engine models

  1. Remove the air cleaner.
  2.  
  3. Remove the spark plug separator from the throttle cable bracket and move the separator and bracket out of the way.
  4.  
  5. Raise the car and support it on jackstands. Remove the strut rod bushing heat shield from the bottom of the transmission and hold the throttle control lever rearward against its stop using a spring.
  6.  
  7. Lower the car and block the choke open, then set the carburetor linkage completely off the fast idle cam.
  8.  
  9. Turn the ignition key to the ON position to energize the throttle stop solenoid.
  10.  
  11. Unlock the throttle control cable by releasing the T-shaped clamp. Release the clamp by prying it up with a screwdriver.
  12.  
  13. Grasp the cable outer sheath and pull it and the cable forward to remove any load on the throttle cable bellcrank, which is part of the carburetor linkage.
  14.  
  15. Adjust the cable by moving the cable.
  16.  

 
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