LeSabre V6-181 3.0L (1986)
Parking Pawl: Customer Interest
A/T - Intermittent No Reverse or Locks In Reverse
Bulletin:
87-7440-10
Date:
Sept., '87
Ref. No. 87-171-7440
Corp. Ref. No. 717105R
SUBJECT:
INTERMITTENT NO REVERSE OR LOCKS IN REVERSE
MODELS AFFECTED: 1984-87 THM 440-T4 (ME9)
BULLETIN COVERS
A 1984 through 1987 vehicle equipped with a THM 440-T4 transaxle may have an intermittent no reverse or locking in reverse condition until shifted to
a forward range, prior to shifting into reverse ("unloading" the parking pawl). This condition may be caused by a "dent" on the parking pawl that does
not allow the pawl to release until "unloaded".
FIGURE 1 - THM 440-T4 TRANSAXLE IDENTIFICATION INFORMATION
DATE OF PRODUCTION CHANGE (Figure 1)
Effective May 1, 1987 (Julian date 121) all 1987 THM 440-T4 transaxles were produced with parking pawl assemblies not having a "dent".
FIGURE 2 - FINAL DRIVE INTERNAL GEAR ASSEMBLY
