How Long Do Engine Motor Mounts Last?

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In order for an engine to maintain stability while it supplies power to the wheels, the use of engine or motor mounts is needed. Whether you have an efficient four-cylinder hybrid or a powerful V8 in your pickup truck, engine mounts are virtually identical in design and application. The size, shape and materials that they are made from will vary, but essentially, if you know where they are located and how they work, you can estimate how long engine motor mounts should last.

When a motor mount works correctly, it will hardly be noticed. However, when they wear out, they can start to cause a vibration that is constant, and worsens as the vehicle accelerates. In order to provide some sort of estimate as to how long they last, knowing their job and knowing the symptoms will help you know when replacement is needed.

What Engine Motor Mounts Do

Motor mounts keep your engine securely attached to the chassis in the engine bay so that it doesn’t shift when you make turns, go up or down hills, or over uneven terrain. Because motor mounts are constantly under stress, it’s not surprising for them to go bad in a high-mileage vehicle. Some models may seem to be more susceptible to bad motor mounts, but it can happen to any vehicle if you own it long enough or drive it over rough ground.

Engine or motor mounts are made in a variety of shapes and sizes to fit a wide variety of needs, but they all serve the same purpose of mounting the engine and dampening engine vibration. They are usually made of metal and rubber. Metal withstands the force and torque generated by the engine, and rubber absorbs and dampens vibrations. As engines generate a considerable amount of vibration in their normal operation, when there is a problem with the motor mounts, increased vibrations can usually be quite noticeable

How to Tell If a Motor Mount Needs Replaced

There are three general symptoms of a bad or failing motor mount:

  • Impact noises coming from the engine bay: One of the most common symptoms associated with worn engine mounts are impact noises coming from the engine bay. Worn, damaged, or broken motor mounts can cause clunking, banging, and other impact type sounds as a result of the weight of the engine shifting around.

  • Excessive vibrations: Another symptom of a bad or failing motor mount is excessive vibration. If the rubber or vibration dampening parts of the motor mount wear out or break, it will significantly reduce the mounts' ability to absorb engine vibrations. Undamped engine vibrations will cause the entire vehicle to vibrate, which may make the ride quality uncomfortable.

  • Engine movement: Finally, bad or failing engine mounts will cause engine movement while in operation. If the engine mounts are in good condition, they should be able to secure the engine firmly in the engine bay. If they are worn or broken, however, this may result in an engine that moves forward, backwards, or side to side in the engine bay. The movement may be especially pronounced when accelerating, and may also be accompanied by an impact noise of some sort.

Generally, motor mounts last a very long time, sometimes the lifetime of the vehicle. However, depending on operating conditions, they can wear out as the miles add up. To avoid excessive damage or serious safety problems, it’s a good idea to have the motor mounts inspected to make sure they don’t need to be replaced. If left unrepaired, a broken motor mount can lead to other damage to your engine and components. If you experience any of the above symptoms or are told you need motor mount replacement, contact a professional technician from YourMechanic to complete this service for you as soon as possible.


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Arturo

25 years of experience
42 reviews
Arturo
25 years of experience
Volkswagen Tiguan - Brake Pads Replacement (Rear) - La Jolla, California
Arturo was efficient and extremely professional. I'll refer him to friends and family and call him for any issues related to my car. I am very happy with the service!
Kia Forte - Brake Pads Replacement (Front) - San Diego, California
ARTURO is great! very professional , fast, replaced my front brake pads and oil an filter change. everything now works and works well. Brakes have much improved stopping power and engine is smooth and quiet.Arturo is also kind and thoughtful. "Your mechanic" is very fortunate to have Arturo Lopez represent your company. I enthusiastically recommend him and "Your mechanic> as a fine operation Best regards to the Team Peter Marto

Travis

11 years of experience
312 reviews
Travis
11 years of experience
Ford Explorer Sport Trac - Brake Pads Replacement (Rear) - Minneapolis, Minnesota
Travis is great! This is the second time he has come and serviced our truck. I recommend Travis for any service ned you may have!
Subaru Forester - Brake Pads Replacement (Front, Rear) - Rosemount, Minnesota
Thank you Travis for your fast, easy, honest work on my vehicle today!! The first thing you did upon arrival to my home was find me a discount coupon for $50 off my service estimate. You did only what needed to be done in record time. You not only saved me lots of money, but did things in a profession manner. I've been looking for an honest auto mechanic for my whole life and would love for you to be it!! Thank you, thank you, thank you!! You're the best!!!

Scott

32 years of experience
346 reviews
Scott
32 years of experience
Hyundai Sonata - Brake Pads Replacement (Front, Rear) - Denver, Colorado
Arrived on time and worked quickly. Gave me detailed information on his completed work and the details of my car. Answered all of my questions thoroughly.
Lexus IS250 - Brake Pads Replacement (Rear) - Denver, Colorado
Always on time, speedy, professional, and pleasant to interact with. The work is always consistent and we'll done. I can't reccomend Scott highly enough!

Nicholas

9 years of experience
251 reviews
Nicholas
9 years of experience
Lexus GX470 - Brake Pads Replacement (Rear) - Clayton, North Carolina
Nicholas texted me 30 minutes prior to arrival. Showed up on time as scheduled. He confirmed the work that I requested be performed. He completed the work, performed the road tested, and delivered my keys along with recommendations of other work that might be in my best interest. Was very pleasant, professional, and cleaned up after he was done. I was so impressed with the service he performed and the speed at which the services were completed. I have already scheduled a future service with Nicholas and will schedule any and all future repairs with him if he is available.

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