A "Mounting" Problem (Motor Mounts)
October 20, 2024
You know how heavy your engine and transmission are, so you can imagine how tough the parts that hold them onto your vehicle's sub-frame must be. Not only must they support the weight, they also have to isolate vibrations and noise from the passenger cabin. Pretty tall order, wouldn't you say?
The parts that face that task daily are called the motor mounts, or engine mounts. They are usually made of rubber with steel brackets. Others contain a liquid for vibration and sound isolation.
Most vehicles have three or four motor mounts, and while rubber or hydraulic liquids do a good job of damping the vibrations from the engine, they also have their limitations. The problem with rubber is that it gets old and brittle. Plus, if there's an oil leak anywhere in your engine and oil gets on the rubber motor mounts, rubber will deteriorate even more quickly. As for the liquid motor mounts, they can develop leaks and stop working.
Here are signs a motor mount is going bad. You may hear a loud clunking or banging sound under the hood. That means the weight of the engine is shifting around enough to bang against other metal parts. You may feel bad vibrations, and the engine may feel like it's moving around in a strange way.
When things get to that point, your vehicle can be damaged from that heavy engine knocking against things, and its time to replace one or more motor mounts. Schedule a visit to your vehicle service facility. There, a technician will assess your motor mounts; if one bad one is found, it's not unusual that others are likely to fail soon and should be replaced before they do.
Because all vehicles are configured differently, some motor mounts are easily replaced. But others can be much trickier, take a lot longer and therefore are more expensive to replace.
It's important for your engine's health to make sure motor mounts are sound and solid. You will maintain that quiet, vibration-free ride and could save your engine and transmission from major wear and tear.
Auto Lab Livonia
36251 Five Miles Rd
Livonia, MI 48154
734-432-6000
http://www.autolablivonia.com
Need Service?
More articles from Auto Lab Livonia
Introduction to Diesels for Livonia, MI
April 26, 2026
Something you're going to be hearing a lot about around Livonia, MI, is diesel engines. We're not talking about semi-trucks and buses; we're talking about diesel engine cars, pick-ups and SUVs.Most people in MI are surprised to learn that around half the cars on the road in Europe have diesel eng... More
It's (Not) Complicated (Engine Air Filter)
April 19, 2026
While many components of your vehicle are complex and composed of lots of mechanical and electrical parts, there's one that isn't complicated but still important. It's your engine air filter. (And, we should point out, the engine air filter isn't to be confused with the cabin air filter. The ca... More
Prepare Your Windshield for Winter (Wiper Blades and Fluid for Freezing Temperatures)
April 15, 2026
Winter and freezing temperatures present challenges for different parts of your vehicles. For example, winter tires give you better traction on snow. But some parts of your vehicle that may need special attention for winter are your windshield wipers. You may have found yourself in the middle o... More