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Ummm, you have a problem eh! Yes I am Canadian, LOL. The best you can hope for is... who ever installed the plugs didn't tighten the plug in the hole. Try to see if you can see down into the threaded hole and see if you can see the threads. I expect you will. Now... To fix this issue now... Get a socket that fits the spark plug preferably 3/8 drive socket and a 6 inch extension with the ratchet and put a piece if paper or rubber band in the socket to hold the spark plug tight in the socket, not too tight. Now try to thread the spark plug back into the hole with your fingers, not the ratchet. You will most likely be able to do it. work with it to get the plug back in. If you cannot do this or if the threads are damaged your best bet is to take your car to a shop. You will need to insert what is called a Heli-Coil. It can be an expensive fix because the mechanic may need to remove the Head from the engine to do the Heli-coil.
If you are lucky, the spark plug was not tightened correctly and worked loose. In this case, you may be able to chase the threads and it will go back in and stay. Make sure the plug is installed correctly this time.
If you are unlucky, the threads will be stripped. In this case, you have 2 choices: thread repair or larger spark plug. Either way, you have to drill and tap the spark plug hole without getting any metal shavings in the cylinder. The main difference is that if you use a thread repair insert, the original spark plug size will fit in your engine; if you tap out the holewithout using an insert you will have to get a different spark plug for the cylinder that was repaired.
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