1. Location:
First, you need to locate the ignition module. On a 1985 Celebrity, it's typically mounted on the firewall, near the distributor. Consult your vehicle's repair manual (a Haynes or Chilton manual is highly recommended) for the exact location and a diagram. The module itself is usually a small, rectangular box.
2. Tools You'll Need:
* Socket wrench set (likely metric)
* Screwdrivers (Phillips and possibly flathead)
* Wire connectors/crimpers (if wires need to be replaced or repaired)
* New ignition module (make sure you get the correct part number for your specific engine)
* Possibly a wiring diagram (from your repair manual)
* Safety glasses
* Gloves (optional)
3. Removal Procedure:
* Disconnect the wiring harness: Carefully unplug the electrical connectors from the ignition module. Take note of how each connector is plugged in, or take photos for reference. Labeling the wires with masking tape and a marker is also a great idea.
* Remove mounting bolts (if any): The module might be held in place by screws or bolts. Unscrew these carefully.
* Remove the ignition module: Gently pull the module away from the firewall.
4. Installation Procedure:
* Install the new ignition module: Carefully align the new module in the same position as the old one.
* Secure the new module: Reinstall any mounting bolts or screws.
* Reconnect the wiring harness: Plug in the electrical connectors, making sure each connector is firmly seated in its proper location. Double-check your work against the notes or photos you took.
* Reconnect the negative battery terminal: Carefully reconnect the negative battery cable to the battery.
5. Testing:
* Start the engine: Try to start the car. If it starts and runs smoothly, the replacement was successful.
* Check for proper operation: Drive the car for a short period to ensure there are no issues with starting, idling, or acceleration.
Important Considerations:
* Repair Manual: Using a repair manual specific to your 1985 Chevrolet Celebrity is strongly recommended. It will provide precise location information, detailed diagrams, torque specifications for bolts, and troubleshooting tips.
* Part Number: Ensure you purchase the correct replacement ignition module. Using the wrong part can lead to further problems.
* Wiring: If any wires are damaged or brittle, they should be repaired or replaced before installing the new module. Improper wiring can cause electrical shorts and potentially damage other components.
* Distributor: If you're having ignition problems, the problem might not be the ignition module. A faulty distributor, coil, or other ignition components could also be the culprit. Consider testing other components if the new module doesn't resolve the issue.
This is a general guide. The specific steps may vary slightly depending on your vehicle's configuration. Always refer to a repair manual for detailed instructions specific to your 1985 Chevrolet Celebrity. If you're uncomfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic.
