![]() Your Outlander may not start if the spark plugs have worn too much, or if they have been contaminated due to improper combustion. The ignition system in your Outlander will have to work a lot harder to be able to ignite the air/fuel mixture in the combustion chambers. When the spark plugs go bad, it is going to take longer for the engine to turn over and start. If your vehicle is getting significantly lower gas mileage than usual, its time to inspect the condition of the spark plugs. Poor fuel mileageĮxcessive fuel consumption is a common sign of bad spark plugs in Outlander. The engine will not run smooth when idling, you may also feel vibrations in the cabin. Rough idleĪnother indication of bad spark plugs in Mitsubishi Outlander is rough idle. When you press the gas pedal in your Outlander, the vehicle may hesitate to accelerate and it will take longer to reach your desired speed. If the spark plugs are not generating sparks properly, the engine will lose power. In case of doubt, check the condition of the spark plugs and replace them if found defective. ![]() However, it can happen that there are no error codes. If you see any error code from P0300 to P0312, it indicates that there are misfires in the engine. To perform further diagnostics, you will need to connect OBD2 scanner to your vehicle. When one or more of the spark plugs start to fail or has failed in your Outlander, it will cause the engine to misfire and the check engine light may illuminate in the instrument cluster. An under-torque spark plug will not come in contact with the air-fuel mixture properly.Symptoms Check engine light illuminates due to misfires Use the wrench to fit it nice and smooth. Make sure you are fitting the new spark plug properly in the cylinder head. An oily, black residue on the electrode means the spark plugs are no more of good use.ĭiscard the old spark plug and place the new one. Once you have taken out the spark plug, ensure it is indeed has gone bad. Spark plug boot removing pliers (optional)īefore starting anything, make sure you have switched off the ignition, parked the motorcycle on the center stand, and shift the bike into neutral gear.Changing spark plugs is not a big deal and can be done by yourself at home. You just have to remove the bad spark plug and change it with a new and good one.Īs for how to go about replacing the spark plug, you can go to a service shop or you can do it yourself. Solution: Replacing the Spark Plugsīad spark plugs need to be replaced with new ones. If the plug is worn out, blackened, has too much carbon deposit, or is in bad working condition, then the spark plug for sure has gone and needs to be replaced. Rather than light brown residue on the electrodes. A major indication that spark plugs have gone bad is it is oily and has black deposits. Once you have removes the spark plug, inspect the plug condition. To take out the spark plug from the engine, using a spark plug wrench is recommended. With these above-mentioned symptoms in mind, you can zero in on the spark plugs to examine and confirm for sure that the spark plug has gone bad. ![]() What these symptoms do provide is an indication of where to check and what to check. Especially the engine misfires and the hard-to-start parts. But there is no guarantee that the spark plug has gone bad until and unless you confirm it firsthand. Now, all these symptoms are fine and good. If the idling is anything but smooth, there is something wrong that needs to be looked into.Īlthough there can be several causes for rough idling, bad spark plugs are definitely up there as one of the main reasons. Run the engine in the neutral gear and that’s all you need. In fact, rough idling is one of the checks you can adopt to take a relook at what is wrong. A bad spark plug will show its signs even when idling. Even when you are idling your motorcycle, you will start noticing it to be rough.
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