1998-2001 EXPLORER
2000-2001 RANGER
2001 EXPLORER SPORT TRAC, EXPLORER SPORT

MERCURY:
1998-2001 MOUNTAINEER

This article is being republished in its entirety to update the model applications covered.

This TSB applies to 2001 Explorer Sport/Sport Trac 4X4 vehicles, 1998 - 2001 Explorer/Mountaineer 4X4 vehicles (all build dates), and 2000 - 2001 Ranger 4X4 vehicles built after 11/1/1999 only.

ISSUE

Some 4X4 vehicles may exhibit a high-pitched "squeal" or "whistle" type noise from the front of the vehicle at speeds from 16 to 64 km/h (10 to 40 mph). This noise may be caused by the front halfshaft excluder (dust) seals (-3K070-) as they rotate against the inner front hubs. The noise may be more pronounced in cold weather conditions.

ACTION

Install new front halfshaft excluder seals on each side of the vehicle. Refer to the following Service Procedure for details.