ENGINE OIL APPEARS TO LEAK FROM REAR MAIN OIL SEAL. Saturn Saturn 1992

For 1990-2009 cars

# ENGINE OIL APPEARS TO LEAK FROM REAR MAIN OIL SEAL

#### SUBJECT: Engine Oil Appears to Leak from Rear Main Crankshaft Oil Seal SOHC (LKO)/DOHC (LLO) Engines with MP6 or MP7 Automatic Transaxles (Check for Rust Preventive Seepage from Torque Converter)

#### MODELS AFFECTED: 1991-1994 Saturns equipped with MP6/MP7 automatic transaxles.

CONDITION: Rust preventive may drip off the torque converter and seep between the engine and automatic transaxle mating surfaces. This rust preventive may puddle on the torque converter housing during the initial heat-up cycle of the automatic transaxle. The location of the rust preventive seepage makes it appear that engine oil is leaking from the engine's rear main crankshaft oil seal. Due to the location of the rust preventive puddle and its color and texture, it can be confused with clean engine oil.

CAUSE: Torque converters are coated with rust preventive during the manufacturing process.

CORRECTION: Check for possible engine oil leak using a Black Light Kit (SA9175NE) and Oil Dye (SA9176NE) or equivalent black light kit and oil dye. Refer to black light kit manufacture's instructions when testing for possible oil leaks.

1. Clean the suspected oil leak area.

2. Pour specified amount of oil dye into engine crankcase.

3. Operate the vehicle under normal operating conditions.

4. Direct the light towards the suspected area. The dye will appear as a yellow path leading to the source of the possible leak.

If an engine oil leak is present, follow the procedures in the "Engine Mechanical Service Manual" to repair the engine oil leak.

If no oil leak is present, wipe off the rust preventive and return vehicle to customer.

CLAIM INFORMATION: To receive credit for this repair, submit a claim through the Saturn Dealer System as follows: Labor Case Operation Type Description Code Time ---- ----------- --------- ---- VW Engine Oil Leak-Analyze J0030 0.5 hrs (Includes: Add Dye, Run Engine, Inspect for Leaks with Black Light or Tracing Powder)

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.