Regal V6-231 3.8L Turbo VIN 9 FI (1984)
Valve Body: Customer Interest
A/T - No Upshift Condition After Downshift
Bulletin:
86-7200-2A
Date:
July, '86
Ref. No.:
86-077A-7200
SUBJECT:
NO UPSHIFT CONDITION AFTER DOWNSHIFT
MODELS AFFECTED:
1984-1986 THM 200C, 200-4R TRANSMISSIONS
NOTE:
This bulletin supersedes bulletin 86-7200-2 dated, March, 1986.
A 1984 through 1986 THM 200C or 200-4R transmission may exhibit a no upshift condition after a part or full throttle downshift.
This condition may be caused by internal leakage hydraulically locking the throttle valve plunger. If this occurs, the line pressure remains at a boosted
level, resulting in a no upshift condition.
FIGURE 1 - THM 200C TRANSMISSION NAMEPLATE
FIGURE 2 -THM 200-4R TRANSMISSION NAMEPLATE
FIGURE 3 - TYPICAL 200C CONTROL VALVE ASSEMBLY
