T.V. CABLE ADJUSTMENT PROC. TO INSURE WOT DOWNSHIFT
MODELS: ALL AUTOMATIC TRANSMISSIONS USED WITH GAS OR DIESEL ENGINES - EXCEPT THM400 SINCE 1981
The following procedures should be used when ever the T.V. cable has to be readjusted. Shift points and the durability of the transmission can be affected by this adjustment.
1. Engine must be off.
2. Reset cable to readjust position:
- Depress and hold metal readjust tab.
- Move slider back through fitting away from throttle lever until slider stops against fitting.
- Release readjust tab.
3. Adjust cable.
Rotate throttle lever to wide open throttle.
Slider must ratchet (click). If not, refer to repair procedure.
4. Review system for proper operation by driving vehicle and checking for availibility of wide open-throttle downshifts (into passing gear).
REPAIR PROCEDURE
- Inspect T.V. cable bracket on engine. The bracket should be firmly attached. Tighten fasteners if loose. The bracket should be flat and perpendicular to the T.V. cable at the cable attaching surface. If not, replace the bracket.
- Inspect T.V. cable for binding or damage. The cable should work freely, without restriction. If not, replace the cable.
- Inspect T.V. link at transmission. It should operate freely and be undamaged. If not, refer to transmission repair section of the service manual.
- Readjust T.V. cable using Steps 1 through 4.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
