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Can a Fuel Filter Cause a Check Engine Light? Get the right set of equipment before you start. The first step is to use better quality fuel. How To Install A Roof Rack On The Ford Transit Connect? This dirt is actually carbon residue that comes from the carbon components of gasoline. Driving with an engine that is knocking isn't recommended. I can hear it on the passenger side under the pulleys. There are a few things that you can do to try and fix the issue. Sometimes, a cars engine persists in knocking no matter what we do. But even if it works, this is not a permanent solution. If the issue is not corrected, it could lead to poor engine performance and even engine failure. Whether you are driving or not, engine knock can slowly cause severe damage to your engine. The ECU is generally better at compensating for a bad mass air flow sensor when the engine is running faster when accelerating. Let's examine these possibilities in-depth. This is caused by fuel injectors. They often wait until the functionality of their vehicle is compromised before they do anything about it. If youve had multiple issues with your vehicle or its an older model, it might be time to cut your losses and trade it for a newer model. Have a good day. In order to fix this issue, you will need to replace the oxygen sensor, gasket, or headlight seal. A common problem occurs with many vehicles, and that is faulty spark plugs. In order to fix this issue, you will need to have the crankshaft replaced. No, rod knock generally gets worse when accelerating. The first thing is to inspect the engine for damaged items or worn-out parts. But fuel octane is one of the primary causes of engine knocks in luxury and performance cars. For example, a rod knock, which indicates a problem with your rod bearings, will increase as you accelerate or if your engine is under heavy load. Look by your gas cap or in the owners manual of your car and see what the octane rating of your fuel is supposed to be. Always get your mechanics opinion before making any decisions.