OIL LEAK AT OIL FILTER ADAPTER (REPLACE SEAL). Cadillac Allante 1993

For 1990-2009 cars

# OIL LEAK AT OIL FILTER ADAPTER (REPLACE SEAL)

#### SUBJECT: OIL LEAK AT OIL FILTER ADAPTER (REPLACE SEAL) ---------------------------------------------

VEHICLES AFFECTED: 1993 "E,K,V" MODELS WITH 4.6L (VIN Y, RPO LD8) ----------------------------------------------

Some 1993 Cadillac Eldorados, Sevilles, or Allantes equipped with the 4.6L Northstar powertrain may experience oil leakage at the oil filter adapter to crankcase joint. A revised seal (0-ring), P/N 3543024, has been released to repair this condition. The new seal has a round cross section as opposed to the elliptical cross section of the old part. Seals are used behind both the inlet and outlet ports of the adapter (two per car).

Before installing new seals the crankcase should be inspected to assure a smooth, flat surface exists for the seals to seat against. Pay particular attention to the crankcase oil passage hole inside diameter and eliminate any burr that may exist. True this surface with a flat stone on both oil inlet and outlet holes.

The replacement procedure is on page 6A-14 of the 1993 Allante Service Information Manual for all vehicles. Use petrolatum or grease to hold the seals in place during installation.

For vehicles repaired under warranty use:

Labour Operation: J0960 Labour Time: 0.7 hour.

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.