Citation V6-173 2.8L VIN Z 2-bbl HP (1983)
FIGURE 1 - AUXILIARY VALVE BODY (COVER SIDE)
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4. There are two types of auxiliary valve
bodies in service. One has an orifice cup plug and the other does not (Figure 1). If the transmission being
serviced has the auxiliary valve body with the orificed cup plug, particles of the auxiliary valve body
cover gasket may have torn loose. This material may be sticking the torque converter clutch apply valve
and/or plugging the converter release orifice in the control valve body spacer plate. If this is found,
disassemble the auxiliary valve body and thoroughly clean. Also, be sure to remove any gasket particles
in the valve body spacer plate converter release orifice hole and replace the auxiliary valve body cover
gasket, P/N 8653947.
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5. Check the valves in the auxiliary valve
body for freeness. (They must move in and out of their bore without sticking).
FIGURE 2 - THM 125/125-C TRANSMISSION I.D. NAMEPLATE:YPSILANTI, MICHIGAN