Chrysler Full-Size Vans 1967-1988 Repair Guide

Throttle Kickdown Rod

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ADJUSTMENT



See Figures 1 and 2

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Fig. Fig. 1: Throttle linkage adjustment for 6-cylinder equipped 1967-69 vehicles



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Fig. Fig. 2: Throttle linkage adjustment for 8-cylinder equipped 1967-69 vehicles

1967-69 Models
  1. Warm the engine to operating temperature and adjust the idle speed to 550 rpm (6-cyl.) or 500 rpm (V8s).
  2.  
  3. Disconnect the transmission throttle rod at the bellcrank on the carburetor. Hold the transmission throttle rod forward so that the lever at the transmission is against its stop. Adjust the rod length so that the ball socket aligns with the bellcrank ball end and engage the ball and socket.
  4.  
  5. Disconnect the throttle rod at the other bellcrank. Adjust the rod length to produce a pedal angle of 115° and re-engage the bellcrank ball and socket.
  6.  

1970-78 Models

See Figures 3 and 4

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Fig. Fig. 3: Throttle linkage adjustment for 6-cylinder equipped 1970-78 vehicles



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Fig. Fig. 4: Throttle linkage adjustment for 8-cylinder equipped 1970-78 vehicles

  1. Warm the engine to operating temperature.
  2.  
  3. Block the choke plate fully open.
  4.  
  5. Remove the throttle return spring from the carburetor.
  6.  
  7. Remove the clip, washer and slotted throttle rod from the carburetor pin.
  8.  
  9. Rotate the threaded end of the rod so that the rear edge of the slot in the rod contacts the carburetor pin when the transmission throttle lever is held forward against its stop.
  10.  
  11. Install the washer and clip to retain the throttle rod to the carburetor.
  12.  
  13. Install the throttle rod return spring.
  14.  
  15. Check the transmission linkage for freedom of operation and unblock the choke plate.
  16.  

1979-88 Models

See Figures 5, 6 and 7

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Fig. Fig. 5: Throttle linkage adjustment for 6-cylinder 1-bbl. equipped 1979-88 vehicles



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Fig. Fig. 6: Throttle linkage adjustment for 6-cylinder 2-bbl. equipped 1979-88 vehicles



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Fig. Fig. 7: Throttle linkage adjustment for 8-cylinder equipped 1979-88 vehicles

  1. Warm the engine up to normal operating temperature. Turn the engine Off.
  2.  
  3. Block the choke plate fully open.
  4.  
  5. Raise the truck on a hoist.
  6.  
  7. Loosen the adjusting swivel lock screw.
  8.  
  9. To insure the proper alignment, the swivel must be free to slide along the flat end of the throttle rod so the preload spring action is not restricted. Clean the parts if necessary.
  10.  
  11. Hold the transmission lever firmly forward against the internal stop and tighten the swivel lock screw to 100 in. lbs. Linkage backlash will automatically be taken up by the preload spring.
  12.  

 
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