Minggu, 15 Mei 2011

How to Change Sparkplugs in a 2003 Toyota Corolla

How to Change Sparkplugs in a 2003 Toyota Corolla

How to Change Sparkplugs in a 2003 Toyota Corollathumbnail
Spark plugs on today's cars last a lot longer than they used to, thanks to advanced ignition technologies.

Spark plugs on today's cars last a lot longer than they used to, thanks to advanced ignition technologies, cleaner running engines and tighter internal clearances on the engine. They do still wear out, however, and eventually you will need to replace them with new units. Fortunately, this isn't very difficult to do and can be done at home in the driveway with some basic tools. In this case, the project vehicle is a 2003 Toyota Corolla with the 1.8l 4 cylinder engine, but the process is similar for other Corolla engines as well.

Difficulty:
Easy

Instructions

things you'll need:

  • 3/8-inch ratchet and extension
  • Spark plug socket
  • Spark plug gapping tool
  • Spark plugs
    • 1

      Pop the hood of the Corolla and locate the spark plug wires. These are the four ignition wires that run from the side of the engine across the top and end at the top. Hold the base of the spark plug wire on the far left side of the cylinder head and pull it up while twisting it to remove the wire from the plug.

    • 2

      Install the spark plug socket onto the end of the 3/8-inch extension, then install that onto the ratchet. Unscrew the spark plug from the engine and discard it.

    • 3

      Gap the replacement spark plug to .044 on the spark plug gapping tool. Then install it into the head in the reverse order the previous plug was removed. Push the spark plug wire onto the plug until it clicks into place.

    • 4

      Move to the next spark plug wire to the right, then repeat Steps 1 to 4 until all of the spark plugs are replaced in the Corolla.

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