Bonneville V8-350 5.7L DSL (1984)
Clutch: Customer Interest
A/T - THM 200C Late Engagement or Slipping In Drive
Number 84-7-2
Date 10/83
Subject:
1984 THM 200C TRANSMISSION LATE ENGAGEMENT OR SLIPPING IN DRIVE
Figure 1
Some early 1984 model THM 200C transmissions may experience a late engagement or slipping in drive range. This condition is usually detected while
the transmission is cold, and could be caused by a blocked forward clutch feed orifice hole (see Figure 1).
Other causes for late engagement or slipping in drive are low transmission oil level, cut or nicked forward clutch piston seals and/or cut or nicked Teflon
turbine shaft seals.
This bulletin is for early 1984 model THM 200C transmissions. Refer to the chart below and verify serial and model numbers. If the serial number is
prior to the number on the chart, then follow this procedure.
SERIAL
MODEL
NUMBER
BH
54628
OI
21738
CZ
1041
JY
1075
OR
1119
OU
1727
Figure 2
