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For 1990-2009 cars only

Repair of Engine Oil Leaks from Upper to Lower Crankcase Joint (Refer to Corporate Bulletin Number 03-06-01-027)

Subject:Repair of Engine Oil Leaks From Upper to Lower Crankcase Joint (Refer to Corporate Bulletin Number 03-06-01-027)

Models:1993 Cadillac Allante
1994-1996 Cadillac Concours, Eldorado, Seville
1996 Cadillac DeVille
1995-1996 Oldsmobile Aurora
with 4.0L or 4.6L Engine (VINs C, Y, 9 -- RPOs L47, LD8, L37)



This bulletin is being revised to update the Correction information. Please discard Corporate Bulletin Number 99-06-01-019 (Section 06 - Engine).


Condition

Some engines may exhibit engine oil leaks along the upper to lower crankcase joint.

Cause

This condition may be caused by scratches, nicks and imperfections in the upper and/or lower crankcases

Correction

If the vehicle exhibits the condition listed above, refer to Corporate Bulletin Number 03-06-01-027 for the repair procedure.