Electra Park Avenue V8-350 5.7L DSL (1982)
Governor Pressure Switch: All Technical Service Bulletins
A/T - Erratic Shift Patterns
Bulletin 87-7200-1
Date
Jan. '87
Ref. No. 87-066-7200
SUBJECT:
ERRATIC SHIFT PATTERNS DAMAGED/ROLLED GOVERNOR SEALS
MODELS AFFECTED: 1976 THROUGH 1980 THM 200 AND 1978 THROUGH 1987 THM 200C EQUIPPED VEHICLES
FIGURE 1 - THM 200C TRANSMISSION I.D. NAMEPLATE
A 1978 through 1987 vehicle equipped with THM 200 or THM 200C transmission (See Figure 1) may have erratic shift patterns (such as late or no
upshifts) due to an O-ring seal on the governor cover assembly causing incorrect governor pressure. NOTE: The erratic shift pattern may be more
noticeable after transmission reaches normal operating temperature.
