WebJun 29, 2024 · A knocking or ticking noise from your engine is a sign that something is wrong. Some engines have a normal ticking noise caused by electrical components like injectors, relays, and solenoids, and also the engine itself makes some noise turning thousands of … WebEngine Knocking At Idle Goes Away When Accelerating Engine knocking is generally a sign of poor combustion and uneven fuel burning. In the beginning stages of damage, the …

Knocking Sound Under Car When Accelerating – How To Fix It?

WebMay 9, 2024 · My 2012 Outback ,4cyl with 160k miles generates a rattle/knocking sound when first accelerating or driving at low speeds while slightly accelerating. All fluid levels ok. When I continue to accelerate,it goes away and does not come back when slowing down to a stop for example. WebAug 6, 2024 · The resulting shock wave rattles the piston inside the cylinder, creating the knock, ping or can-of-marbles sound you hear. Detonation has the same effect, except it occurs after the plug fires. Computers in modern vehicles can detect engine knock and compensate by adjusting engine timing. Though it saves your engine from destroying … craftsman gas lawn edger blades

Rattle/knock under low acceleration wnd when starting to...

WebJul 27, 2024 · Knocking Noise While Driving Also known as detonation, this is a rapid rattling you may hear as the car accelerates. This can occur if you’re using a lower grade of gasoline than the automaker recommends. Many cars that are equipped with turbocharged engines require premium-grade fuel. If the car engine is knocking when accelerating, the octane of the fuel could be too low or the timing is bad. If the knocking noise is coming from under the car rather than from … See more To fix the knocking engine, you could be looking at anywhere from $5 to $500 or more, depending on what’s causing the problem. If you can simply put an additive in the tank, you have a minimal repair cost. Otherwise, replacing … See more division problem solving year 6