Fuel Injection Fuel Rail Assembly Replacement

Fig 1: Fuel Injection Fuel Rail Assembly

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
WARNING: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby. Preliminary Procedures Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection . Remove the engine sight shield. Refer to Engine Sight Shield Replacement . Remove the fuel injection fuel feed pipe. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side . Remove the fuel injection fuel feed pipe-fuel injection pump to fuel rail. Refer to Fuel Injection Fuel Feed Pipe Replacement - Fuel Injection Pump to Fuel Rail .
1	Fuel Injection Fuel Rail Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 25 (18 lb ft)
2	Fuel Injection Fuel Rail Procedure Disconnect the fuel rail pressure service valve wiring harness plug. Disconnect the fuel rail pressure regulator wiring harness plug. Unclip the fuel injection fuel return hose from fuel return hose clamp. Remove the fuel return hose clamp. Remove the fuel return hose from fuel injection fuel rail assembly. Place caps on the open fuel rail connectors to avoid contamination from dust as soon as the fuel rail pipes are removed.

Callout

Component Name

WARNING:

Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

Preliminary Procedures

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
Remove the fuel injection fuel feed pipe. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side .
Remove the fuel injection fuel feed pipe-fuel injection pump to fuel rail. Refer to Fuel Injection Fuel Feed Pipe Replacement - Fuel Injection Pump to Fuel Rail .

Fuel Injection Fuel Rail Bolt (Qty: 2)

CAUTION:

Refer to Fastener Caution .

Tighten
25 (18 lb ft)

Fuel Injection Fuel Rail

Procedure

Disconnect the fuel rail pressure service valve wiring harness plug.
Disconnect the fuel rail pressure regulator wiring harness plug.
Unclip the fuel injection fuel return hose from fuel return hose clamp.
Remove the fuel return hose clamp.
Remove the fuel return hose from fuel injection fuel rail assembly.
Place caps on the open fuel rail connectors to avoid contamination from dust as soon as the fuel rail pipes are removed.