1. Gather Tools and Parts:
- Ensure you have the necessary tools, including a timing belt kit (with belt, tensioner, and idler pulley), wrenches, sockets, and a timing light.
2. Safety Precautions:
- Disconnect the negative terminal of the battery to prevent electrical sparks.
3. Remove Accessories and Covers:
- Remove the air intake system and any covers or components obstructing access to the timing belt.
4. Locate Timing Marks:
- Find the timing marks on the crankshaft pulley and the camshaft sprockets. These are typically notches or lines that align when the engine is at top dead center (TDC).
5. Remove the Old Belt:
- Loosen the tensioner pulley bolt and rotate it to relieve the tension on the old timing belt.
- Remove the old timing belt by sliding it off the pulleys.
6. Align Timing Marks:
- Turn the crankshaft pulley until the timing marks on the crankshaft and the camshaft sprockets align. This ensures the engine is at TDC.
7. Install New Timing Belt:
- Position the new timing belt around the crankshaft pulley, camshaft sprockets, and idler/tensioner pulley.
- Ensure the timing marks align as the belt is installed.
8. Adjust Tensioner:
- Use the proper tool to adjust the tension on the timing belt according to the manufacturer's specifications.
9. Reinstall Components:
- Put back any components removed earlier, including covers, air intake, etc.
10. Reconnect Battery:
- Reconnect the negative battery terminal.
11. Verify Timing:
- Double-check all timing marks align to confirm proper timing.
12. Start the Engine:
- Start the engine and let it run for a few minutes.
13. Final Check:
- Verify the engine is running smoothly and there are no unusual noises or vibrations.
Remember, this is a general overview, and specific steps may vary for your particular Eclipse model. It's essential to refer to your vehicle's service manual and have the proper knowledge and skills before attempting a timing belt replacement. If unsure about any step, it's best to consult a professional mechanic.
