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How do I know if I have bad motor mounts?

If your vehicle is experiencing unusual vibrations, shaking, or noises, it may be a sign of bad motor mounts. Motor mounts are the rubber or metal components that secure the engine to the vehicle's frame, and when they wear out, it can lead to a variety of issues. Here's how you can tell if your motor mounts need to be replaced.


Symptoms of Bad Motor Mounts



  • Excessive Engine Movement: When the motor mounts are worn, the engine will be able to move more than it should, causing the vehicle to shake or vibrate, especially during acceleration or braking.

  • Clunking or Banging Noises: As the engine moves excessively, you may hear clunking or banging noises, especially when shifting gears or going over bumps.li>
  • Difficulty Steering: Worn motor mounts can cause the engine to shift position, which can affect the alignment of the steering components and make the vehicle harder to steer.li>
  • Increased Wear on Other Components: When the engine is not properly secured, it can put additional stress on other parts of the vehicle, leading to premature wear and tear on things like the transmission, driveline, and suspension.li>

If you notice any of these symptoms, it's a good idea to have your motor mounts inspected by a qualified mechanic as soon as possible to prevent further damage to your vehicle.


Diagnosing Bad Motor Mounts


To diagnose bad motor mounts, a mechanic will typically perform a visual inspection and a test drive. They may also use a pry bar or other tool to check the amount of engine movement. If the engine is able to move more than the manufacturer's specifications, it's a sign that the motor mounts need to be replaced.p>

In some cases, the mechanic may also perform a load test, where they apply pressure to the engine to simulate acceleration or braking, and then measure the amount of movement. This can help confirm the diagnosis and identify which specific motor mount is failing.


If you suspect you have bad motor mounts, it's important to have them checked out by a professional as soon as possible to avoid further damage to your vehicle.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.