Method 1: In-Tank Cleaning (Easier, Less Effective)
This method involves adding a fuel injector cleaner to your gas tank. It's a convenient option but might not be sufficient for severely clogged injectors.
1. Choose a fuel injector cleaner: Select a reputable brand from an auto parts store. Read the instructions carefully, as the amount to add and the required driving time will vary.
2. Add the cleaner: Pour the cleaner into your gas tank. Make sure your gas tank isn't completely full.
3. Drive your car: Drive the car for at least the recommended time and mileage specified on the cleaner's instructions. This allows the cleaner to circulate through the system and clean the injectors.
Method 2: Removal and Cleaning/Testing (More Involved, More Effective)
This method requires more work but provides a thorough cleaning and allows for inspection. This is generally recommended if you suspect significant clogging. Warning: Working with fuel involves flammable materials. Take necessary safety precautions.
1. Disconnect the battery: This prevents accidental short circuits.
2. Drain fuel pressure: This step is crucial. Consult your vehicle's repair manual for the precise procedure. There will be a fuel pump pressure release valve that needs to be manipulated. Failing to relieve pressure can result in fuel spraying.
3. Remove the fuel injectors: Locate the fuel injectors on the intake manifold. Access varies by engine. You'll likely need to disconnect fuel lines, electrical connectors, and possibly remove some parts for access. Again, consult your repair manual for precise location and removal procedures.
4. Clean the fuel injectors:
* Ultrasonic cleaner: This is the most effective method. Specialized ultrasonic cleaners designed for fuel injectors are available at auto parts stores or online. Follow the cleaner's instructions.
* Manual cleaning: You can try soaking the injectors in a fuel injector cleaning solution and using a small brush to gently clean the nozzles. This method is less effective than ultrasonic cleaning.
5. Inspect the fuel injectors: Check for damage, leaks, or excessive wear.
6. Test the fuel injectors (optional but highly recommended): A fuel injector tester will verify their spray pattern and flow rate. This ensures that the cleaning was effective and that the injectors are functioning correctly.
7. Reinstall the fuel injectors: Carefully reinstall the fuel injectors, paying close attention to their proper orientation and connections.
8. Reconnect the fuel lines and electrical connectors: Ensure all connections are secure and leak-free.
9. Reconnect the battery: Reconnect the battery.
10. Check for leaks: Start the engine and check for any fuel leaks around the injectors and fuel lines.
Important Considerations:
* Repair Manual: A repair manual specific to your '87 Chevy Celebrity is invaluable for this task. It will provide detailed diagrams, instructions, and torque specifications.
* Safety: Fuel is highly flammable. Work in a well-ventilated area away from open flames or sparks. Wear safety glasses and gloves.
* Professional help: If you are not comfortable performing this task yourself, it's best to take your vehicle to a qualified mechanic. Improperly cleaning or reinstalling fuel injectors can cause significant engine damage.
This information is for general guidance only. Always consult your vehicle's repair manual for specific instructions and safety precautions. Improper repair can lead to serious damage or injury.
