IN-PAN OIL FILTER REPLACEMENT PROCEDURE

MODELS AFFECTED: 1987 SKYLARK WITH 2.5L ENGINE (VIN CODE U) AND MANUAL TRANSMISSION 1988 SKYLARK WITH 2.5L ENGINE (VIN CODE U) AND AUTOMATIC TRANSMISSION 1988 CENTURY WITH 2.5L ENGINE (VIN CODE R) AND AUTOMATIC TRANSMISSION

When servicing 2.5L engines with the oil filter located in the oil pan, please be aware of the following recommended service procedure:

1. Remove oil pan drain plug.

2. Slowly turn filter to begin removal and pull downward.

3. Remove oil filter with pliers or vise grips. Let oil drain completely.

4. Check for presence of O-Ring on used filter. If not on the filter, check inside the oil filter housing on the engine. Discard used O-Ring.

5. Coat O-Ring and grommet inner bead on new filter with clean motor oil.

6. Press fit new filter (Part Number 25012305, A/C Type PF1072) into housing by hand.

7. Wipe oil pan drain plug gasket with clean cloth and coat with clean motor oil.

8. Reinstall oil pan drain plug and tighten 1/4 turn after gasket contacts pan.

9. With engine oil at proper operating level, run engine and check plug for leaks. Check oil level.

It should be emphasized that Labor Operation No. J-0950 is to be used for OIL FILTER REPLACEMENT - ONLY!

This labor operation is to be used exclusively in cases requiring only an oil filter replacement. Do NOT use for routine maintenance or service.

WARRANTY INFORMATION

Labor Operation Number: J0990 for oil pan drain plug/gasket replacement.

Labor Operation Number: J1000 for pan or oil pan gasket replacement.

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.