Century V6-173 2.8L (1986)
Torque Converter Clutch: All Technical Service Bulletins
A/T - Summary of Shudder Diagnosis
Bulletin
86-7440-3
Date
Oct. '86
Ref. No. 86-174-7440
SUBJECT:
1984 THROUGH 1986 THM 440-T4 TRANSAXLE SUMMARY OF SHUDDER DIAGNOSIS
MODELS AFFECTED: ALL THM 440-T4 TRANSAXLES
NOTE:
This bulletin supplements 85-7440-6.
A vehicle equipped with a 1984 through 1986 THM 440-T4 transaxle may experience a shudder condition which may be described as similar to driving
over rough pavement. This condition may be the result of various engine and/or transaxle-related causes.
Before diagnosing for a transaxle-related shudder condition, make sure the condition is not engine-related.
Figure 2
Refer to the chart (Figure 2, page 2) for diagnosis information and potential causes. When performing any service procedure, refer to the appropriate
Service Manual.
