Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Cadillac DeVille BaseFACTORY OEM SERVICE PROCEDURE
Installation Procedure
- Install the fuel filler pipe (1).
- Install the fuel filler pipe clamp.
Tighten: Tighten the fuel filler pipe clamp to 4.2 N.m (37 lb in).
- Install the fuel tank filler pipe ground wire attaching bolt (4).
Tighten: Tighten the bolt to 9 N.m (80 lb in).
- Install the wheel house filler pipe opening cover (2).
- Lower the vehicle.
- Add fuel to the fuel tank.
- Install the fuel tank filler pipe cap.
- Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
- Perform the following procedure in order to inspect for leaks:
- Turn ON the ignition, with the engine OFF for 2 seconds.
- Turn OFF the ignition for 10 seconds.
- Turn ON the ignition, with the engine OFF.
- Inspect for fuel leaks.
- Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.
NOTE:
Refer to Fastener Notice in Cautions and Notices.
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.