Axle Vent Hose Fluid Leak

This information applies to 2003-06 Chevrolet Silverado and Express, GMC Sierra and Savana, and Hummer H2.

An axle fluid leak that appears to be from the end of the axle vent hose most often occurs during hot ambient temperatures and/or while towing.

Installation of filter (p/n 5651682) (fig. 14) will act as an accumulator and prevent fluid from being forced out the end of the vent tube. Install the filter vertically in either direction approximately 10-15 cm (4-6 in) from the end vent cap of the hose or where convenient. Retain the filter using the supplied hose clamps and secure the filter and hose to prevent damage.

- Thanks to Rusty Sampsel