Your car’s engine might run rough if you notice that it’s idling faster than usual or if it feels like the RPMs are bouncing around when you rev the engine. There are several possible reasons why this could happen. Your mechanic should be able to figure out and fix the problem without much trouble. Here are five of the most common reasons your car’s engine might run rough.
1) Dirty Fuel Injectors
One of the most common reasons your car’s engine might run rough is dirty fuel injectors. When fuel injectors get clogged with dirt and debris, it can cause your engine to misfire and run rough. As a result, you might notice your car having trouble starting up, or if it does start, it might stall soon after. If you’re experiencing these symptoms, getting your fuel injectors cleaned as quickly as possible is vital.
2) Bad Spark Plugs
Another reason your car’s engine might run rough is bad spark plugs. When your spark plugs are old, fouled, or damaged, they can cause your engine to misfire and run rough. Having your spark plugs replaced is usually an easy and inexpensive fix that can significantly affect how your car runs.
3) Exhaust System Problem
Another common issue causing a rough running engine is a problem with the exhaust system. If your car’s engine is rough, it could be because of something wrong with the exhaust system. The exhaust system includes the muffler, catalytic converter, and exhaust pipes. If any of these parts are not working properly, it can cause your car’s engine to run rough.
4) Clogged Air Filter
A clogged air filter is another one of the most common reasons your car’s engine might run rough. When your air filter is clogged, it restricts the amount of air that can flow into your engine. Unfortunately, this can prevent your engine from maintaining the proper fuel-to-air mixture, leading to many problems. So if you’re having trouble with your car’s engine running rough, one of the first things you should have your mechanic check is your air filter.
5) Vacuum Leak
Finally, a vacuum leak is one of the more common reasons your car’s engine might run rough. If there’s a hole in your intake manifold, it can cause your engine to run lean, which can lead to all sorts of car trouble. A vacuum leak can also cause your engine to run hot, leading to overheating and engine damage.
Don’t ignore a rough-running engine for long. Ignoring this will only worsen the problem, leading to more severe mechanical issues. Instead, see your auto care professional today to have your rough-running engine smoothly again.