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May 24, 2024 · The flywheel or flexplate may be worn or cracked. Flywheels and flexplates connect your vehicle’s engine to the transmission. When they’re old or broken, they may wobble and create a rattling sound near your engine. [15] The Fix: Replace the plate if it looks damaged and you’re experienced with repairing cars.
- Low Engine Oil. Engine oil is used to keep components lubricated and prevent damage due to friction, and as the level drops, more metal-to-metal contact can occur which causes vibrations that translate into the telltale rattling sound.
- Cracked or Broken Serpentine Belt. When the serpentine belt gets cracked or completely broken, it can make a rattling noise because it will get loose and hit vital engine components.
- Broken Mounting Bracket. A broken or worn mounting bracket will allow the engine to move freely, creating vibration and rattling noise while running. The third thing that could be making a rattling noise is a broken mounting bracket.
- Broken or Cracked Timing Belt. A broken timing belt may cause the engine to make a rattling noise because the timing belt synchronizes the camshaft and crankshaft of an engine, allowing them to communicate with one another seamlessly.
Key Point: Engine mount deterioration, leading to increased engine movement and rattling, typically costs between $250 and $600 to repair. 7. Loose Belts and Pulleys. Loose belts and pulleys under the hood can cause rattling noises, particularly noticeable at startup or lower speeds.
Jan 9, 2018 · This creates a rattling noise. Solution: Replace the starter motor. Bad fan clutch. If your vehicle has rear-wheel drive, with its engine mounted lengthwise, your engine may have a fan clutch to regulate the operation of its engine-mounted cooling fan. The fan clutch can fail and produce a rattling noise.
- Stephen Fogel
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Feb 12, 2023 · The most common causes of a rattling noise from under the vehicle are loose exhaust components, broken suspension, bad catalytic converter, brake problems, or the wheels such as a loose lug nut. Here is a more detailed list of the most common causes of rattling noises coming from under the car: 1. Loose Exhaust Components.
Jul 6, 2024 · Possible Causes. Faulty or loose parts can cause your car to make a rattling noise. The strange noise could come from inside the car, beneath it, or under the hood. Some components that could cause the noise when they’re faulty or worn out include the windows, heat shield, and hydraulic valve lifter, among others. 2.
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Aug 15, 2024 · A hissing or whooshing noise typically indicates that something is leaking. In most cases, this will be an exhaust leak or an air leak from a vacuum line. Both could lead to engine performance ...
