Section A THM 200-C Diagnosed Conditions or Symptom Descriptions
NOTE: General groups are listed in alphabetical order Bulletins are listed in previous to most current orderGENERAL DIAGNOSIS
MODEL/YEAR BULLETIN NUMBERS SUBJECT SUMMARY
GROUPS or SYMPTOM
LEAKS Transmission oil 1982 BUICK 2-I-200 This revised pump and case gasket will
exhausting from All models CAD T-8315 help eliminate this condition. Service
vent CAN 7-170 information and illustration given.
CHEV 82-T-97
CORP 827220
GMTC 82-B-73
HM 82-18
OLDS 32-12
PONT* 82-T-79
Diagnosing All models BUICK 83-77 Diagnosis and repair procedure given for
transmission CAD T83-51 use when transmission oil leak is
oil leaks CAN 7-170 detected.
CHEV 83-I-50
CORP 837910
HM 82-34
OLDS 83-T-5
PONT * 83-I-53
Transmission 1982 BUICK 2-T-113 Service and repair information given for
oil exhausting All models CAN 7-191 pump to case bolts that are too long.
from vent CHEV 83-T-9
CORP 827915
HM 82-44
OLDS 33-2
PONT * 83-T-2
Transmission oil 1983-1984 HM 84-19 This condition caused by out of flat
exhausting out conditions on the face, nicked faces,
vent pipe porosity or damage to pump body
assembly, or oil pump cover assembly.
THM 200-C 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
NOISE Whine noise in 1983 BUICK 83-148 Noise cause could be front internal gear
First, Second All models CAD T84-1 noticeable when car is in drive. Part
and Reverse CAN 7-172 number given.
CHEV 83-T-65
CORP 837208
HM 83-53
OLDS 33-11
PONT* 83-T-42
PERFORMANCE Loss of drive 1982 BUICK 2-T-108 Repair and service procedure given for
and/or no CX, CY, CZ, OR, CAN 7-189 broken or cracked oil driven pump gear.
reverse C7, CN, CO, CK CHEV 2-T-133 Replacement pan numbers also given.
CB, CW, C9, HB CORP 827221
HF, HH, HL, PS HM 82-37
OLDS 82-T-20
PONT* 82-T-88
Loss of Power 1982-1984 BUICK 84-7-2 New brazing process for converter
in Drive & OR model CAN 7-120 blades prevents movement of
Reverse 1981 CHEV 84-93 blades and reduction of torque
AS, HT, 0T CORP 847901 multiplication.
1983-1984 GMTC 84-B-64
OU model HM 83-80
OLDS 34-8
PONT* 4-7-23
THM 200-C 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 3-2 and/or 1982-1983 BUICK 83-T-17 Repair and service procedure given.
2-1 coastdown CN, HH CAN 7-115 Also 2 new assemblies going
clunk models CHEV 83-T-23 into production.
CORP 83721
HM 82-56
PONT * 83-T-17
3-2 and/or 1983 HM 82-56A Supplement to 82-56. Repair and service
2-1 coastdown CN, CS, HO information given.
clunk models
1984 All models
CAN 7-180 Gives service procedure for removal of
Second or Third 1983
CHEV 83-T-73 burrs sticking in the T.V. bushing
gear starts HO, CS models
CORP 837212 causing this condition.
HM 83-60
PONT * 83-T-50
Soft 1-2 and All models BUICK 84-7-4 New rubber lip seals will replace scarf
2-3 Shifts CAD T4-73 Teflon seal rings. This should eliminate
CAN 7-129 soft 1-2 and 2-3 shifts.
CORP 847903
GMTC 84-B-62
HM 83-75
OLDS 34-8
PONT* 4-7-16
THM 200-C 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 Late Engagement Early 1984 BUICK 472001 Possible causes for this condition are
or Slipping CAN 7-102 given with service procedures and
in Reverse CHEV 84-12 charts.
CORP 847201
GMTC 84-B-16
HM 83-88
OLDS 34-2
PONT * 8-7-2
2-1 Coastdown 1984- BUICK 5-72003 Repair procedure given for removal of
Clunk early 1985 CAN 5-7117 the Primary Spring from the governor.
CHEV 85-39
CORP 857202
HM 85-11
OLDS 35-7
PONT * 5-7-10
Occasional long Some 1984- BUICK 5-72001 This condition caused by exhaust orifice
1-2 shift when early 1985 CHEV 85-29 hole which must be drilled to 9/64
cold CORP 857201 diameter.
HM 85-25
PONT* 5-7-8A