Info - Use of New Special Tool J 46363 - Fuel Line Disconnect Tool for Fuel Filter Removal/Installation Procedure on 5.3L Flexible Fuel Engine (RPO L59)
| Subject: | Use of New Special Tool J 46363 - Fuel Line Disconnect Tool for Fuel Filter Removal/ Installation Procedure on 5.3L Flexible Fuel Engine (RPO L59) |
| Models: | 2002-2003 Chevrolet Silverado, Tahoe |
| 2002-2003 GMC Sierra, Yukon |
| with 5.3L Flexible Fuel Engine (VIN Z -- RPO L59) |
Some 2002-2003 vehicles may be equipped with a 5.3L Flexible Fuel Engine. A new tool and procedure has been released for the removal and installation of the fuel filter.
Follow the service procedure below for the removal and installation of the flexible fuel filter.
Caution:
• Relieve the fuel system pressure before servicing fuel system
components in order to reduce the risk of fire and personal injury. • After relieving the system pressure, a small amount of fuel may
be released when servicing the fuel lines or connections. In order to reduce
the chance of personal injury, cover the regulator and the fuel line fittings
with a shop towel before disconnecting. This will catch any fuel that may
leak out. Place the towel in an approved container when the disconnection
is complete.
- Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical (SI Document ID #890144).
- Install the J 34730-1A . Refer to Fuel Pressure Gauge Installation and Removal procedure (SI Document ID #803489).
- Loosen the fuel fill cap in order to relieve fuel tank vapor pressure.
- Open the valve on the J 34730-1A in order to bleed the system pressure. The fuel connections are now safe for servicing.
- Drain any fuel remaining in the gauge into an approved container.
- Once the system pressure is completely relieved, remove the J 34730-1A .
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information (SI Document ID #737171).
- Using a flare nut wrench and a backup wrench, disconnect the fuel line fitting from the fuel filter.
- Pull the quick-connect fitting back until the internal retainers hit the filter stop.
- Twist one end of the J 46363 - Fuel Line Disconnect Tool and insert it between the quick-connect fitting and the filter.
- Twist the opposite end of the J 46363 - Fuel Line Disconnect Tool and insert it between the quick-connect fitting and the filter.
- Once the J 46363 - Fuel Line Disconnect Tool is inserted, ensure the tool is parallel to the filter and the fitting.
- While holding the filter, push the quick-disconnect fitting towards the filter in order to disconnect the quick-connect fitting.
- Remove the quick-connect fitting from the filter.
- Remove the filter from the bracket.
- Install the new fuel filter, P/N 15173334 or P/N 25164003 (A/C Delco P/N GF847), to the bracket.
- While holding the filter, push the fitting towards the filter in order to connect the quick-connect fitting.
- Using a flare nut wrench and a back up wrench, connect the fuel line fitting to the filter.
- Position the fuel sensor bracket into place and install the two nuts.
- Lower the vehicle.
- Tighten the fuel cap.
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical (SI Document ID #890144).
Important: Clean the fuel filter connections and surrounding area before disconnecting the fuel lines in order to avoid possible fuel system contamination.
Tighten
Tighten the two nuts to 17 N·m(13 lb ft).
Parts Information
Part Number | Description |
|---|---|
15173334 | Flexible Fuel Filter |
25164003 | Flexible Fuel Filter (A/C Delco #GF847) |
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J5420 | Filter, Fuel - Replace | 0.3 hr |
