ENGINE FLARE/SLIP ON TURNS PUMP WHINE-84-87 THM 440T4

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.

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

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.