A/T - THM 440-T4 Engine Flare or Slip On Turns
Number 87-7-35 Date 8/87Subject: ENGINE FLARE OR SLIP ON TURNS; PUMP WHINE DURING OR AFTER TURNS
1984-1987 6000 AND BONNEVILLE MODELS EQUIPPED WITH THM 440-T4 (ME9)
BULLETIN COVERS:
Engine flare, pump whine or transaxle slip during vehicle turns may be caused by low fluid level or the fluid filter..
Figure 1 - THM 440-T4 Transaxle Identification Information:
DATE OF PRODUCTION CHANGE: (Figure 1)
Starting April 6, 1987 (Julian date 096), all THM 440-T4 transaxles were built using a filter with a new inlet and baffle design.
SERVICE ACTION:
Check for proper fluid level and correct as necessary. If the flare still occurs remove the bottom pan and replace the filter and seal with a new filter and seal package listed below in Service Parts Information.
SERVICE PARTS INFORMATION:
Service Package Number 8646902 (Filter and Seal Package) contains the following items:
- Oil pan gasket
- Fluid filter assembly
- Filter intake pipe to case seal