Tools and Materials Needed:
- New fuel injector
- Fuel injection cleaner
- Fuel injector removal tool
- Socket set
- Phillips head screwdriver
- Flathead screwdriver
- Safety goggles
- Gloves
- Rags
- Flashlight
Instructions:
1. Preparation:
- Turn off the engine and disconnect the battery.
- Relieve the fuel system pressure by pressing the Schrader valve on the fuel rail.
- Locate the fuel injectors on the intake manifold.
2. Remove Air Intake:
- Remove the air intake hose and any other components blocking access to the fuel injectors.
3. Remove Fuel Line:
- Use a fuel line disconnect tool to detach the fuel line from the fuel injector.
- Be careful not to damage the O-ring on the fuel line.
4. Remove Fuel Injector:
- Use a fuel injector removal tool or a flathead screwdriver to gently pry the fuel injector out of its socket.
- Be careful not to drop the injector into the engine.
5. Replace Injector:
- Inspect the old injector for damage and compare it to the new injector.
- Install the new injector by carefully positioning it in its socket.
6. Reattach Fuel Line:
- Reattach the fuel line to the fuel injector and secure it with the fuel line disconnect tool.
7. Clean and Lubricate:
- Apply a small amount of fuel injection cleaner to the O-rings of the new injector.
- Use a small brush to clean the fuel injector seat.
8. Reinstall Air Intake:
- Reinstall the air intake hose and any other components removed in step 2.
9. Reconnect Battery:
- Reconnect the battery.
10. Start the Engine:
- Start the engine and let it run for a few minutes to allow the fuel system to pressurize.
11. Check for Leaks:
- Inspect the fuel injector connections for any leaks. If there are any leaks, tighten the connections or replace the O-rings.
12. Test Drive:
- Take the car for a test drive to ensure that the fuel injector is functioning properly.
Note:
- It's important to follow the specific steps and precautions outlined in your Cadillac Catera's service manual for your particular model and engine type.
- If you're not comfortable performing this repair yourself, it's best to consult a professional mechanic.
