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How do you change the spark plugs in 2001 Lexus rx300?

Tools

- Spark plug socket

- Extension bar

- Ratchet

- Spark plug gap gauge

- New spark plugs

Instructions

1. Turn off engine.

2. Remove engine cover.

3. Unscrew the spark plugs using a spark plug socket, an extension bar and a ratchet.

4. Remove the old spark plugs.

5. Check that the gap between the new spark plugs' center and side electrode matches the recommended gap size (usually 0.044 inches or 1.1 mm). If necessary, adjust the gap using a spark plug gap gauge.

6. Install the new spark plugs into the cylinder head.

7. Tighten the spark plugs until you first feel resistance and then an additional 1/4 to 1/2 turn. Do not over-tighten.

8. Reinstall engine cover.

9. Start the engine.

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