K 30 P/U 4WD V6-262 4.3L (1985)
Throttle Valve Cable/Linkage: Description and Operation
4L60 (THM 700-R4)
T.V. Cable System
The T.V. Cable used with the Automatic 700-R4 transmission should not be thought of as an automatic downshift cable. The T.V. cable used on the
Automatic 700-R4 controls line pressure, shift points, shift feel, part throttle downshifts and detent downshifts. The function of the cable is similar to
the combined functions of the vacuum modulator and the downshift (detent) cable used on the 350C transmission.
Figure 7A-3 Throttle Valve (T.V.) Cable And Linkage
Figure 7A-4 Throttle Lever And Bracket Assembly
The T.V. cable operates the throttle lever and the bracket assembly (Figures 7A-3 and 7A-4). The Throttle Lever and Bracket Assembly serves two (2)
basic functions:
1. The primary function of this assembly is to transfer the carburetor throttle plate movement to the T.V. plunge in the control valve assembly as
related by the T.V. cable and linkage (Figure 7A-3). This causes T.V. pressure and line pressure to increase according to engine throttle
opening and also controls part throttle and detent downshifts. The proper adjustment of the T.V. cable is based on the T.V. bushing at engine
wide open throttle.
Figure 7A-3 Throttle Valve (T.V.) Cable And Linkage
