TSB 87-60-02 (S: Engine - Oil Odors

Details

File In Section: 6 - Engine Bulletin No.: 87-60-02A Date: July, 1998 Subject: Engine Oil Odor (Replace Rear Main Bearing Seal) Models: 1990-96 Buick Regal 1994-97 Buick Skylark 1994-98 Buick Century 1990-94 Chevrolet Cavalier 1990-95 Chevrolet Camaro 1990-96 Chevrolet Beretta, Corsica, APV 1990-98 Chevrolet Lumina 1995-98 Chevrolet Monte Carlo 1997-98 Chevrolet Malibu, Venture 1990-97 Oldsmobile Cutlass Supreme 1990-98 Oldsmobile Silhouette 1994-96 Oldsmobile Cutlass Ciera 1994-97 Oldsmobile Achieva 1997-98 Oldsmobile Cutlass 1990-94 Pontiac Sunbird 1990-95 Pontiac Firebird 1990-98 Pontiac Grand Prix, Trans Sport 1994-98 Pontiac Grand Am with 3.1L, 3100, 3.4L, 3400 Engines (VINs T, D, X, M, E, S - RPOs LH0, LG6, L01, L82, LA1, L32) This bulletin is being revised to correct the model usage and part number. Please discard Corporate Bulletin Number 87-60-02 (Section 6 - Engine). Condition Some of the above listed V6 engines may, on a very infrequent basis, have an oil odor condition that is generally encountered after the engine's oil has been changed. Typically the odor lasts approximately 1000 miles after the change of oil and then does not reappear until the next change of oil. Cause This condition may be caused by a reaction taking place between the engine oil additive package and the grease used on the engine's crankshaft rear main oil seal. Correction Verify that the engine does not have any external oil leaks. This can be accomplished by using the methods outlined in the appropriate Service Manual. If normal diagnostics are unable to establish the source of the oil odor, replace the crankshaft rear main oil seal. Before installing the seal, remove the grease from the seal and lightly coat the lip area of the seal with clean engine oil. Parts Information P/N Description Qty 14085829 Crankshaft , rear main bearing seal 1 Parts are currently available from GMSPO. Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time J1120 Seal, Crankshaft Use published labor operation time