Removal Procedure

Fig 1: View Of Fuel Return Line And Bolts

Courtesy of GENERAL MOTORS CORP.

CAUTION: 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.

CAUTION: Refer to Battery Disconnect Caution .

Disconnect the negative battery cable.
Remove the high pressure fuel pipes. Refer to Fuel Injector Fuel Feed Pipe Replacement .
Remove the injector return hoses. Refer to Fuel Return Pipe Replacement .

Fig 2: View Of Injector Connectors

Courtesy of GENERAL MOTORS CORP.

Disconnect the injector connector.
Remove the injector bracket plug.

Fig 3: View Of Injector Bracket Bolts

Courtesy of GENERAL MOTORS CORP.

Unscrew the injector bracket bolt.
Pull the injector bracket out from the injector using by the bolt manually.
Remove the injectors with the washer upward.

Fig 4: View Of EN-48357

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Number the injectors using a pen. If mixed up, it could influence engine performance.

If the injectors stick to the cylinder head, use EN-48357 . See Special Tools .