Section A THM 200-4R Diagnosed Conditions or Symptom Descriptions

NOTE: General groups are listed in alphabetical order Bulletins are listed in previous to most current order

GENERAL DIAGNOSIS
MODEL/YEAR BULLETIN NUMBERS SUBJECT SUMMARY
GROUPS or SYMPTOM

LEAKS Oil Leak All models BUICK 83-77 Provides diagnostic procedure once
CAD T83-51 leak is detected.
CAN 7-1200
CHEV 83-I-50
CORP 837910
HM 82-34
OLDS 83-T-5
PONT * 83-I-53

NOISE Whine in first, 1983 BUICK 83-148 Condition caused by front internal
second and All models CAD T84-1 gear assembly. Diagnosis procedure
reverse CAN 7-172 included.
CHEV 83-T-65
CORP 837208
HM 83-53
OLDS 33-11
PONT* 83-T-42

PERFORMANCE No fourth gear 1982-1983 BUICK 83-91 Provides diagnostic procedures to find
All models CAD T83-69 cause of no 4th gear conditions.
CAN 7-121
CHEV 83-T-29
CORP 837203
HM 83-8
OLDS 33-7

Loss of power 1982-1984 BUICK 84-7-2 New brazing process for converter
in Drive and OM model CAN 7-120 blades prevents movement of blades
Reverse 1984 CHEV 84-83 and reduction of torque multiplication.
OF, OY models CORP 847901
GMTC 84-B-64
HM 83-80
OLDS 34-8
PONT* 4-7-23
THM 200-4R DIAGNOSED CONDITIONS or SYMPTOM DESCRIPTIONS (Cont'd)

NOTE: General groups are listed in alphabetical order Bulletins are listed in previous to most current order

GENERAL DIAGNOSIS
MODEL/YEAR BULLETIN NUMBERS SUBJECT SUMMARY
GROUPS or SYMPTOM

SHIFTING 3-4 Shift All 1982 CAN 7-120 Assembly sequence to eliminate rough
Feel CR model CHEV 82-T-20 3-4 shift feel by installing piston.
CORP 827202
HM 81-68

3-4 Shift 1982-1983 BUICK 83-165 New control valve assembly has been
Busyness BY model CAD T83-107 produced to correct this condition.
condition while in CAN 7-167
cruise control CORP 837207
HM 83-5

Shift busyness 1981 CAD 1-I-167 Service and repair information is given.
while in cruise BY model CORP 817219 Service package pan numbers also
control HM 83-43 given.
OLDS 34-12
PONT* 81-I-199

Soft 1-2 and All models BUICK 84-7-4 New intermediate servo piston will have
2-3 shifts CAD T4-73 rubber lip seals to eliminate soft
CAN 7-129 1-2 and 2-3 shifts.
CORP 847903
GMTC 84-B-62
HM 83-75
OLDS 34-8
PONT * 4-7-16
THM 200-4R DIAGNOSED CONDITIONS or SYMPTOM DESCRIPTIONS (Cont'd)

NOTE: General groups are listed in alphabetical order Bulletins are listed in previous to most current order

GENERAL DIAGNOSIS
MODEL/YEAR BULLETIN NUMBERS SUBJECT SUMMARY
GROUPS or SYMPTOM

SHIFTING 3-4 Shift 1983 CAN 7-222 Beginning 1984 all 200-4R were built
Busyness OZ model CORP 837215 with dual pump slide ring to correct
Condition HM 83-96 this condition.
OLDS 34-9

BUICK 4-2008A Service and repair information given to

Firm or harsh 1983-1984
CAN 7-148 replace piston 3-4 accumulator. New
shift 1-2 BY, BT, models

CORP 847208 service package part numbers given.

HM 84-06A
OLDS 35-2
PONT * 4-731A

Harsh 1-2 1983-1984 BUICK 473254 Instructions given to check second
upshift All models CAD T4-96 clutch check ball for possible peening
CAN 7-149 of oil apply hole.
CHEV 84-179
CORP 847907
HM 84-12
OLDS 35-4
PONT * 4-7-36

Harsh 1-2 1984 HM 84-13 Caused by damaged or mispositioned
and/or All models TV spring. A new valve body has gone
3-4 shifts into production to remedy problem.
Transmission identification information is also given.