Tools Required • J 41089 Injection Pump Wrench • J29872-A Injection Pump Adjustment Tool This procedure should be used after an injection pump installation or when injection timing needs to be checked or adjusted. A scan tool must be used to check or adjust injection timing. A static timing mark can be used as a… Read More »
Removal Procedure Tools Required J 41089 Injection Pump Wrench 1. Remove the negative battery cables. 2. Remove the intake manifold. Refer to Intake Manifold Removal. 3. Remove the injection lines. Refer to Injection Line(s) Replacement. 4. Remove the fuel inlet line from the injection pump. 5. Remove all necessary harness connectors and hoses from the… Read More »
Materials Fuel Lines – These are welded steel tubes, meeting GM Specifications 124-M, or its equivalent. Do not use copper or aluminum tubing to replace steel tubing. Those materials do not have satisfactory durability to withstand normal vehicle vibration. Coupled hose – These are not to be repaired and are replaced only as an assembly.… Read More »
Removal Procedure Caution: To reduce the risk o f fire and personal injury that may result from a fuel leak, always replace O-ring seals exposed during component services. Caution: Refer to Battery Disconnect Caution in Cautions and Notices. 1. Remove negative battery cable(s). 2. Loosen filler cap(s) to relieve tank pressure. 3. Release the fuel… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool 1. Remove the fuel tank filler cap. Caution: Refer to Battery Disconnect Caution in Cautions and Notices. 2. Disconnect the negative battery cable(s). 3. Raise the vehicle on a hoist. 4. Remove the fuel tank. Refer to Fuel Tank Replacement. 5. Remove the sender unit by… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool 1. Disconnect negative battery cables. 2. Drain the fuel from the tank. Refer to Fuel Tank Draining Procedure. 3. Raise the vehicle. 4. Loosen the filler neck hose clamp at the fuel tank and disconnect the fuel tank filler neck from the fuel tank. 5. Support… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool 1. Disconnect the negative battery cables. 2. Drain the fuel from the tank. Refer to Fuel Tank Draining Procedure. 3. Raise the vehicle. 4. Remove the fuel tank off-road shield bolts, if equipped. 5. Remove the fuel tank off-road shield, if equipped. 6. Loosen the filler… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool 1. Disconnect negative battery cables. 2. Drain the fuel from the tank. Refer to Fuel Tank Draining Procedure. 3. Raise the vehicle. 4. Loosen the filler neck hose clamp at the fuel tank and disconnect the fuel tank filler neck from the fuel tank. 5. Support… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool 1. Remove negative battery cables. 2. Drain the fuel from the tank. Refer to Fuel Tank Draining Procedure. 3. Raise the vehicle. 4. Loosen the filler neck hose clamp at the fuel tank and disconnect the fuel tank filler neck from the fuel tank. 5. Support… Read More »
Removal Procedure Tools Required J 36608 Fuel Sender Tool Caution: Before servicing any electrical component, the Ignition key must be In the OFF or LOCK position and all electrical loads must be OFF, unless Instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal,… Read More »