Bonneville V6-252 4.1L (1982)
Valve Body: All Technical Service Bulletins
A/T - 3-2 and 2-1 Coastdown Clunk
Number 82-I-240
Section 7
Date 11/83
Subject:
3-2 AND 2-1 COASTDOWN CLUNK 1982 THM 200-C CO, CK AND C7 MODELS
Some 1982 CO, CK, and C7 model THM 200-C transmissions may exhibit a 3-2 and 2-1 coastdown clunk condition... This condition is most noticeable
at 5-10 mph.
SPACER PLATE IDENTIFICATION
Beginning with the start of production for 1984, all THM 200-C transmissions are produced using a new control valve spacer plate with an orificed
exhaust to correct this 3-2 and 2-1 coastdown clunk condition.
When servicing any 1982 CO, CK or C7 THM 200-C transmission for 3-2 and 2-1 coastdown clunk condition, order service parts listed below:
PART NUMBER
CONTENTS
1982 CO Model
1 - Spacer Plate
Part Number 8648331
Control Valve
1982 C7 or CK Model
1 - Spacer Plate
Package Number 8638928
Control Valve
1 - Spring, Intermediate
Servo Cushion
