Replacing the catalytic converter on a Plymouth Neon involves several steps and requires some specific tools and components. View and download the manual with one click here……
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Below is a detailed guide to help you through the process.
### Tools and Materials Needed:
1. **Tools:**
– **Jack and Jack Stands**: To lift the vehicle safely.
– **Ratchet and Socket Set**: Common sizes include 10mm, 13mm, and 15mm sockets.
– **Wrench Set**: Open-end or box-end wrenches to help with stubborn bolts.
– **Pry Bar**: To help remove old components if they are stuck.
– **Creeper or Mechanic’s Mat**: For comfort while working underneath the vehicle.
– **Torque Wrench**: To ensure bolts are tightened to manufacturer specifications.
– **Oxygen Sensor Socket**: If your catalytic converter has an O2 sensor that needs to be removed.
2. **Materials:**
– **New Catalytic Converter**: Make sure it’s compatible with the Plymouth Neon model year.
– **Exhaust Gasket**: New gaskets for the connections to ensure a proper seal.
– **High-Temperature Exhaust Sealant**: Optional for added security on joints.
– **Anti-Seize Compound**: To be applied to the threads of bolts to prevent seizing.
### Preparation:
1. **Safety First**: Ensure the car is parked on a flat surface, engage the parking brake, and wear safety goggles and gloves.
2. **Disconnect the Battery**: Disconnect the negative terminal of the battery to avoid any electrical issues while working on the vehicle.
### Step-by-Step Replacement Process:
1. **Lift the Vehicle**:
– Use a jack to lift the front of the car and secure it on jack stands. Ensure the vehicle is stable before crawling underneath.
2. **Locate the Catalytic Converter**:
– The catalytic converter is located in the exhaust system, typically between the exhaust manifold and the muffler.
3. **Remove the oxygen Sensor**:
– If your vehicle is equipped with an O2 sensor in the catalytic converter, use the oxygen sensor socket to remove it. Be gentle and avoid damaging the sensor if you plan to reuse it.
4. **Remove the Exhaust Flanges**:
– Identify the bolts connecting the catalytic converter to the exhaust manifold and the rest of the exhaust system. Using the ratchet and appropriate socket, remove these bolts. Note their arrangement for reinstallation.
5. **Remove the Old Catalytic Converter**:
– Once the bolts are removed, gently wiggle the catalytic converter to free it from any exhaust hangers or brackets. You may need a pry bar to assist with stubborn components.
6. **Prepare the New Catalytic Converter**:
– Before installation, compare the old catalytic converter with the new one to ensure they are identical.
– Apply anti-seize compound to the threads of the new bolts if applicable.
7. **Install the New Catalytic Converter**:
– Position the new catalytic converter in place, ensuring that it aligns correctly with the exhaust manifold and the downstream exhaust pipe.
– Reinstall the exhaust bolts and gaskets. Tighten the bolts by hand first, then use a torque wrench to tighten to the manufacturer’s specified torque, usually found in a service manual.
8. **Reinstall the oxygen Sensor**:
– If you removed an O2 sensor, reinstall it into the new catalytic converter. Ensure it is snug but avoid over-tightening.
9. **Check the Exhaust Hangers**:
– Ensure that all exhaust hangers are reattached properly to support the exhaust system.
10. **Reconnect the Battery**:
– Reconnect the negative battery terminal.
11. **Lower the Vehicle**:
– Carefully remove the jack s
tands and lower the car back to the ground.
12. **Test the Exhaust System**:
– Start the vehicle and listen for any exhaust leaks. Check for any rattling or unusual noises.
### Final Checks:
– **Check for Leaks**: Inspect the connections for any exhaust leaks. If you notice any, you may need to re-tighten the bolts or reapply sealant.
– **Check Engine Light**: If the check engine light was on before replacement, it may take some time for it to turn off after replacing the catalytic converter. If it remains on, you may need to scan for codes.
### Conclusion:
Replacing the catalytic converter on a Plymouth Neon is a manageable task for someone with Basic mechanical skills and the right tools. always refer to a repair manual specific to your vehicle for torque specifications and detailed diagrams. If you’re uncomfortable with any step, consider seeking professional help.
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