How to Change the Glow Plugs in an L200

Written by bryan cowing
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How to Change the Glow Plugs in an L200
Mitsubishi L200s use diesel fuel and require glow plugs. (diesel image by Martina Berg from

The Mitsubishi L200 is a diesel engine truck released by Mitsubishi and marketed specifically in Great Britain. In the L200, glow plugs ignite the fuel to keep the truck moving. Sometimes, these glow plugs go bad or malfunction. When this happens, it is a good to know how to replace them yourself so that you can get back on the road quickly and save yourself some money. Replacing the glow plugs is not a difficult task once you know what you are looking for.

Skill level:

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Things you need

  • Socket wrench set
  • New glow plugs
  • Flat head screwdriver

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  1. 1

    Open the bonnet on your L200.

  2. 2

    Look at the centre of the engine. Depending on the year of your L200, the glow plugs will either be in the centre of the engine on either side of the block, or they will be more to the right and higher above the actual engine block. Look for small, pencil-shaped pieces that are silver and similar in size to an adult's pinky finger.

  3. 3

    Remove the air intake hose if it obstructs your reach to the glow plugs. If the air intake hose is in the way, use your flat head screwdriver to loosen the clamps over the hose and then pull the hose straight out of the engine.

  4. 4

    Remove the wires that connect your glow plug to the rest of the engine. This should come out by simply pulling it straight out of the engine.

  5. 5

    Place your socket wrench over the glow plug that you would like to remove.

  6. 6

    Rotate the handle of your socket wrench in a counterclockwise motion. This will loosen the glow plug enough that you can pull it out with your hands.

  7. 7

    Remove the glow plug by pulling it out of the engine with your hands. It is best to use your hands rather than the socket wrench, as this helps prevent the glow plug from falling into the engine.

  8. 8

    Slide the new glow plug into the empty glow plug channel.

  9. 9

    Tighten the glow plug with your socket wrench. This time, twist the handle in a clockwise motion.

  10. 10

    Repeat these steps for the remaining glow plugs.

  11. 11

    Replace the connection wire.

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