If you are noticing that your car is giving poor fuel consumption and the car struggles to pick up speed, then you might consider yourself to replace the spark plugs. But before buying replacement spark plugs, it is always ideal to test which spark plugs are bad and test which ones are good. Testing them out could save you money because it is likely that all of the spark plugs in the car engine will not need changing, just a few bad ones really. You could go to a local garage to get each spark plug checked out, but you can also check them yourself and save additional money.
1) Insert the key into the ignition and start up the vehicles engine. Once you have started it up, leave the engine running for about 5 minutes.
2) Wear a pair of handy rubber gloves on both hands. This will protect you from get an electrical shock when you are touching the spark plugs while the car engine is running and will also prevent your hands from getting dirty.
3) Pop the hood open and locate were the spark plugs are located in the car engine. Two common places that are seen in most cars are either on the top or on the sides of the car engine. Once found, you will see a wire that is attached to each spark plug. So what you need to do is disconnect it from all of them individually, not all at once.
4) Once you have removed the wire from one spark plug, listen carefully do the sound the car engine makes. If the car engine makes a different noise, different to the noise when the spark plug wire was inserted into the spark plug, this shows a good sign. This indicates that it is not necessary for you to replace it.
5) If you don’t hear any difference from sound the car engine makes, when removed and it sounds the same before you removed the spark plug wire from the spark plug, it is faulty and will need replacing. Carry out step 4 for all of the spark plugs, applying this testing method to each spark plugs. This will allow you to identify which spark plug is bad and which is good, without using any special testing tools.
5) If you don’t hear any difference from sound the car engine makes, when removed and it sounds the same before you removed the spark plug wire from the spark plug, it is faulty and will need replacing. Carry out step 4 for all of the spark plugs, applying this testing method to each spark plugs. This will allow you to identify which spark plug is bad and which is good, without using any special testing tools.
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