FRT. AXLE VENT HOSE LEAK (REVISED CONNECTOR RELEASED)

SUBJECT: FRONT AXLE VENT HOSE CONNECTOR LEAK (REPLACE VENT HOSE CONNECTOR)

MODELS: 1988 - 1991 K-TRUCKS

Some 1988-91 K-trucks may experience a leak at the front axle vent hose connector (refer to figure 1). This leak usually occurs at the threads of the front axle vent hose connector.

This leak may be caused by inadequate sealer applied to the vent connector threads and relaxation or shrinkage of the vent connector material. This leak may be corrected by replacing the vent hose connector with a revised connector featuring an o-ring seal.

SERVICE PROCEDURE:

Remove (Figure 1)

1. Front axle skid plate (if equipped). 2. Clamp (52). 3. Hose (53) from the vent connector. 4. Vent hose connector (54).

Install (Figure 1)

1. New vent hose connector (54). - Torque to 13 N-m (10 lbs. ft.). - Sealer is NOT required or recommended. 2 Hose (53) to the vent connector. 3. Clamp (52). 4. Front axle skid plate (if equipped).

SERVICE PARTS INFORMATION:

Part Number Description Quantity ----------- ---------------- ---------- 26032443 Connector, Front 1 per vehicle Axle Vent Hose

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

For vehicles repaired under warranty use: Labor Operation: F3269 Labor Time: 0. 3 hrs.

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.