Oil Leak from Engine Front Cover Crankshaft Oil Seal During Extremely Cold Weather (Replace Crankshaft Front Oil Seal)

This bulletin is being revised to add additional models and model years, update the information and title, and correct the Parts Information. Please discard Corporate Bulletin Number 04-06-01-009 (Section 06 - Engine Mechanical ).

Some customers may comment on an oil leak from the front engine cover crankshaft oil seal during extremely cold weather.

During extremely cold weather, moisture at the engine crankshaft balancer may freeze to the crankshaft front oil seal, which may result in the oil seal being torn when the engine is started.

Replace front crankshaft oil seal with a new service part, P/N 12584041, which is constructed of an improved sealing compound that is not susceptible to freezing. Refer to the service procedure in this bulletin to replace the front crankshaft oil seal.

Removal

1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement in the appropriate Service Manual or SI.
2. Use a flat-bladed tool to remove the front crankshaft oil seal from the engine front cover. Discard the old front crankshaft oil seal.

Installation

1. Use the front crankshaft seal installer, J 35268-A to install the new crankshaft front oil seal, P/N 12584041, to the engine front cover.
2. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement in the appropriate Service Manual or SI.

For vehicles repaired under warranty, use: