Identifying Bad Motor Mount Symptoms

Identifying Bad Motor Mount Symptoms

In today’s modern world, regular car maintenance is essential to ensure the safe running of your vehicle and to avoid costly repairs in the long run. A key part of ensuring a smooth and safe ride is paying close attention to the motor mount, an integral part of the engine system. Motor mounts are designed to keep the engine attached securely to other details of your vehicle while isolating vibrations from the engine; however, they can wear out over time, leading to dangerous problems with your car. To ensure you stay safe on the road and don’t have to spend money unnecessarily on repairs, you must understand the common bad motor mount symptoms to recognize them early on. In this article, we will discuss what exactly a motor mount is and why it is important for your car’s operation; we will also explore some of the most common symptoms associated with a failing motor mount so that you can spot any issues quickly.

Signs and Symptoms of a Bad Motor Mount

Motor mounts are critical components designed to keep the engine securely in place and dampen engine vibration, and when they fail, they can cause a host of issues that range from annoying to dangerous. Here are some signs and symptoms of a bad motor mount:

  • Identifying Bad Motor Mount Symptoms Excessive Vibration: This can be caused by worn or broken mounts that no longer provide adequate cushion between the engine and chassis. If your car shakes more than usual when accelerating or idling, then this could indicate that one or more motor mounts have failed.

  • Abnormal Noises: If you hear clunking or thumping noises from underneath the hood when accelerating, it could be a sign of a bad motor mount. The noise is caused by the engine not being properly secured in its place, allowing it to move around and create more noise than usual.

  • Engine Misfires: Motor mounts are designed to keep the engine in its proper position and absorb vibration; however, if one or more mounts have failed, then the engine may not quite sit in its ideal spot, which can lead to misfires or rough idling due to incorrect timing.

  • Oil Leaks: If the engine is vibrating more than usual, it can cause seals and gaskets to loosen and crack, leading to oil leaks.

  • Check Engine Light On: A broken or worn motor mount can cause the check engine light to come on due to incorrect engine timing, and it will need to be replaced before the light can be reset.

Causes of a Bad Motor Mount

The most common cause of a bad motor mount is age. Over time, the rubber material of the mount can start to wear out and become brittle, making it less effective at absorbing vibration and securing the engine. That’s why it’s essential to inspect motor mounts for signs of wear or damage periodically; if any part looks mainly worn or cracked, it should be replaced as soon as possible. Other causes of a bad motor mount can include inadequate lubrication – if there isn’t enough lubricant between the metal parts of the mount, then excessive friction will cause them to wear down eventually – and general wear and tear due to driving conditions such as rough roads or off-road terrain. Also read about what is a compression test on a car here.

How to Fix a Bad Motor Mount

If you suspect one or more motor mounts have failed, inspect and replace them as soon as possible. Replacing motor mounts is straightforward and can be completed at home with the right tools and instructions. First, the faulty mount needs to be removed from its place by unbolting it or using pry bars if necessary. The new mount should then be installed in its place; ensure it is firmly secured using bolts or clips. Once the new mount has been fitted, any remaining parts should be reinstalled and tightened securely. Finally, test drive the car to make sure that everything is working correctly; if so, you’ll now have a smoother ride with no vibrations!


Motor mounts are an important part of any car’s engine system, ensuring the engine stays securely attached while dampening vibration for a smoother ride. When motor mounts fail due to age or wear and tear, they can cause many annoying – or even dangerous – issues such as excessive vibration, abnormal noises, like clunking, misfiring engines, oil leaks, and check engine lights coming on. If you suspect your motor mounts may need replacing, it’s best not to wait too long before getting them checked out by a professional mechanic; this will save you money in the long run by preventing further damage from occurring due to worn-out parts.