How to Replace Spark Plugs in Lexus UX?
2 Answers
Lexus UX spark plug replacement procedure: Open the hood, lift the plastic engine cover, remove the high-voltage ignition wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. During removal, check for external debris like leaves or dust and ensure thorough cleaning. Place the new spark plugs into the spark plug holes, hand-tighten them for a few turns before using the socket wrench. Reinstall the high-voltage ignition wires according to the firing order and secure the cover. Spark plug replacement interval: Under normal maintenance conditions, replacement is recommended at 40,000-60,000 kilometers. However, this may vary depending on brand and engine type. Always consult the owner's manual. Reference maintenance standards: Platinum spark plugs at 40,000 km, standard nickel alloy spark plugs at 20,000 km, and iridium spark plugs at 60,000-80,000 km.
Changing spark plugs is a common DIY task for me. Here's a brief rundown of the steps: Open the hood of your Lexus UX and locate the ignition coils—the engine might be compact, so be careful when unplugging them. Use a spark plug socket (usually 14mm or 16mm) to unscrew the old spark plug, but don't apply too much force or it might break. Before installing the new spark plug, apply some anti-seize compound, then gently screw it in. Use a torque wrench to tighten it to the manufacturer's recommended value, around 15-20 ft-lbs. After that, reconnect the ignition coil and start the engine to test it. Remember to replace them every 60,000 miles to improve engine efficiency and longevity, saving you some fuel costs. The tools aren't expensive, and doing it yourself can save hundreds in repair fees—but safety first: disconnect the negative battery terminal to prevent electric shock. If you're unsure, check out video tutorials.
