C 3500 Truck 2WD V8-350 5.7L (1985)
Throttle Valve Cable/Linkage: Adjustments
THM 350C
Adjustment Procedure of T.V. and Detent Cable
Preliminary Checks
1. Check transmission oil level and correct as required.
2. Be sure engine is operating properly and brakes are not dragging.
3. Check for correct cable, according to the parts catalog.
4. Check that the cable is connected at both ends.
5. Adjust the cable as follows:
Figure 7A-5 T.V. Cable (Self Adjusting)
Adjusting Self-Adjusting Type Cable (Figure 7A-5)
1. Stop engine.
2. Depress re-adjust tab. Move slider back through fitting in direction away from throttle body until slider stops against fitting.
3. Release re-adjust tab.
4. Open carburetor or injection pump lever to "full throttle stop" position to automatically adjust cable. Release lever.
5. Check to insure cable is not sticking or binding. Road test vehicle- if OK, return to owner. If delayed or only full throttle shifts still occur,
proceed with the following:
Figure 7A-9 Alignment Of Throttle Lever And Bracket Assembly
Figure 7A-10 Throttle Lever To Cable Link
Remove the oil pan and inspect the throttle lever and bracket assembly (Figure 7A-9). Check that the T.V. exhaust valve lifter rod is not
distorted and not binding in the control valve assembly or spacer plate. The T.V. exhaust check ball must move up and down as the lifter
rod does. Also, be sure lifter spring holds the lifter rod up against the bottom of the control valve assembly. Make sure T.V. plunger is not
stuck. Inspect transmission for correct throttle lever to cable link (Figure 7A-10). If the T.V. cable is adjusted too short or not adjusted at
all, it will result in raising the line pressure and shift points. It may also limit the carburetor or injection pump opening to prevent full
throttle operation.
