GM Service Manual Online
For 1990-2009 cars only

ENGINE FLARE,SLIPS, NO DRIVE ON TURNS - 84-87 THM 440T4

MODELS AFFECTED: 1984-1987 THM 440-T4 (ME9)

NOTICE: This bulletin is being reissued to include additional symptoms. Please discard bulletin 87-7440-8.

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 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


Object Number: 83575  Size: FS

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.