However, I can give you a *general overview* of the process. Remember, this is not a substitute for a proper repair manual:
Tools You'll Need:
* Spark plug socket: The correct size (usually 5/8" or 13/16", check your manual) and deep enough to reach the plugs. A universal joint is highly recommended to access the plugs at various angles.
* Wrench: To loosen and tighten the spark plug wires.
* Spark plug wire puller: (optional, but helpful) Makes removing the wires easier without damaging them.
* New spark plugs: Use the correct type and heat range specified in your owner's manual.
* Gloves: To protect your hands.
* Jack and jack stands: To safely lift the car.
* Wheel chocks: To secure the car.
* Rags or shop towels: To keep things clean.
* Torque wrench: Absolutely essential to tighten the plugs to the correct specification. Over-tightening can damage the threads, while under-tightening can cause misfires.
General Steps (Consult your repair manual for specifics!):
1. Safety First: Disconnect the negative battery cable. Support the car securely on jack stands. Never work under a car supported only by a jack.
2. Access the Spark Plugs: Locate the spark plugs. On most V6 engines, this often involves removing parts of the intake manifold or other components to gain access. Your repair manual will show you exactly where they are and what needs to be removed.
3. Remove the Spark Plug Wires: Carefully disconnect the spark plug wires, one at a time. Make a note of which wire goes to which plug to avoid confusion during reinstallation. A spark plug wire puller can help prevent damage to the wires.
4. Remove the Old Spark Plugs: Use the spark plug socket and a ratchet to carefully remove the old spark plugs. Avoid dropping anything into the cylinder. Clean the area around the spark plug wells.
5. Install the New Spark Plugs: Carefully install the new spark plugs by hand until they are snug. Then, use the torque wrench to tighten them to the manufacturer's specified torque. This is crucial to prevent damage. Over-tightening is a common mistake.
6. Reconnect the Spark Plug Wires: Reconnect the spark plug wires in the correct order.
7. Reassemble: Reinstall any components that were removed to access the spark plugs.
8. Lower the Car: Carefully lower the car from the jack stands.
9. Reconnect the Battery: Reconnect the negative battery cable.
10. Start the Engine: Start the engine and check for any misfires or other problems.
Again, this is a very general overview. You MUST consult a repair manual specific to your 1997 Chrysler LHS before attempting this repair. Incorrect procedures can lead to engine damage. If you are not comfortable performing this repair yourself, take it to a qualified mechanic.
