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Throttle (Kickdown) Cable
See Figures 7, 8, 9 and 10
The throttle or kickdown cable can also be known as the Throttle Valve (TV) cable. The purpose of the cable is to signal the transmission that a downshift should occur when the accelerator is pushed all the way to the floor. To check and adjust the cable:
1.
Check the accelerator cable end-play and make sure it is within specification. There should be 0.4-0.6 in. (10-15mm) of end-play. If not, loosen the cable locknut located at the bracket on the throttle body and turn the adjusting nut until the proper play is achieved. Hold the adjusting nut and tighten the locknut when you are finished.
The accelerator cable is the upper cable, while the transmission throttle (kickdown) cable is the lower of the 2 cables on the throttle cam and bracket. If you are in doubt, follow the cables back, one will go through the fire-wall, while the other will continue down to the automatic transmission.
2.
Make sure the ignition switch is in the LOCK position and have an assistant fully depress and hold the accelerator pedal. If an assistant is not available, a large brick should suffice, but make it is heavy enough that the pedal does not move during adjustment
Click image to see an enlarged view
Fig. 7: Before checking the throttle cable (2) adjustment at the throttle cam (3), make sure the accelerator pedal cable (1) end-play is within specification
Click image to see an enlarged view
Fig. 8: When adjusting the throttle cable on 3-speed models, make sure that clearance "a" is 0.0-0.039 in. (0-1mm) with the pedal fully depressed and the cable housing pulled tight away from the throttle body (direction A)
Click image to see an enlarged view
Fig. 9: While adjusting the cable on 3-speed models, make sure the adjusting nut is fit into the adjusting bracket (as shown with the dotted lines) while holding the specified clearance, then tighten the locknut nut against the bracket.
For 3-speed models:
1. Loosen the locknut and adjusting nut so that both are loose and not in contact with the TV cable bracket on the throttle body.
2.Pull the throttle cable casing AWAY from the throttle body until tight and no cable deflection exists, then with the cable held in this position, tighten the cable locknut to within 0.0-0.039 in. (0-1mm) of the cable bracket.
Make sure that the cable adjusting nut is not in contact with the bracket at this point.
3.Release the accelerator pedal while keeping the cable locknut-to-cable bracket clearance at 0.039 in. (1mm).
4.Tighten the cable adjusting nut until it engages and fits into the cable bracket.
5.Now, with the adjusting nut positioned flush with the cable bracket, fully tighten the cable locknut.
Click image to see an enlarged view
Fig. 10: Throttle cable adjustment on the 4-speed is a relatively simple matter of obtaining a 0.031-0.059 in. (0.8-1.5mm) measurement between the cable tip end adjustment mark and the end of the boot.
For 4-speed models:
1.Measure the distance between the tip end of the cable adjustment mark and the end of the boot. The distance should be 0.031-0.059 in. (0.8-1.5mm). If not, loosen the locknut and turn the adjusting nut until this measurement is achieved.
2.Snug the throttle cable locknut with the throttle cable pulled tight.
3.Double-check the measurement between the tip end of the cable and the adjustment mark to make sure it did not change while tightening the locknut.
5.Operate the vehicle and verify that the transmission kickdown shift is occurring properly.
Shifter Select Cable
The shifter select cable attaches the manual gear selector in the passenger compartment to the shift shaft in the side of the transmission housing. It should not require periodic attention, but may need adjustment if other mechanical components at either end of the cable are replaced. Adjustment is simply a case of removing excessive play from the transmission end of the cable using the adjusting nut and locknut on the threaded portion of the cable which passes through the shift shaft. For more details, please refer to procedures for the Neutral Safety Switch information.
