Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Fuel Pressure Relief -Relieve the fuel system pressure.
Fuel Feed Pipe Replacement (Fuel Tank To Engine LF4) Fuel Feed Pipe Replacement (LF4 at Engine) -Remove and DISCARD
Remove and DISCARD the fuel feed intermediate pipe. Fuel Feed Intermediate Pipe Replacement (LF4)

Fig 1: Fuel Pump Electrical Connector

Courtesy of GENERAL MOTORS COMPANY

Electrical Connector @ Fuel Pump -Disconnect

Fig 2: Fuel Pump

Courtesy of GENERAL MOTORS COMPANY

CAUTION:

Alternately loosen the fuel pump bolts one turn at a time until the pump is fully disengaged from fuel pump lifter follower. Trying to remove the pump bolts without even side-to-side loosening may result in pump plunger damage

Remove and DISCARD the high pressure fuel pump bolts (1).
1. Remove the high pressure fuel pump (2).
2. Remove the valve lifter follower (3).
3. Remove and DISCARD the high pressure fuel pump gasket (4).
4. Remove and DISCARD the high pressure fuel pump O-ring (5).