Are motor mounts worth replacing?

Yes. Motor mounts are worth replacing when they show signs of wear or failure, because they protect engine movement, reduce vibrations, and prevent collateral damage to the drivetrain and exhaust. Replacing worn mounts restores smooth operation, but it involves labor costs and vehicle downtime.

What motor mounts do

Motor mounts secure the engine and transmission to the frame while dampening vibrations and keeping crucial components in alignment. They also serve as anchors for accessories and protect the drivetrain from torque that occurs during acceleration and braking.

Types you might find

Automakers use a few common designs depending on the engine layout and model. The most common are rubber-engine mounts, hydraulic mounts that use fluid to damp vibrations, and, in some performance or older vehicles, semi-solid or rigid mounts. Many cars also use separate transmission mounts or a torque mount to handle engine torque and movement.

• Rubber engine mounts: simple and affordable, but can crack or harden over time.


• Hydraulic or fluid-filled mounts: provide better damping but can leak or wear out.


• Transmission mounts: hold the transmission in place and can wear regardless of engine mounts.


• Torque mounts/struts: control engine torque transfer to the chassis, common in some performance cars.

Understanding the type of mount in your vehicle helps gauge replacement needs and potential labor complexity.

Symptoms of worn motor mounts

Noticeable signs often point to mounting wear. If several symptoms appear, scheduling a professional inspection is wise.

• Excessive engine vibration or movement, especially at idle or during throttle on/off


• Clunking, banging, or squeaking noises when starting, shifting gears, or going over bumps


• Visible cracking, tearing, or separation in mount rubber or brackets


• Increased cabin vibration or movement of the engine under load


• Engine appears to shift or twist during acceleration or heavy braking

These symptoms can also indicate related issues, but worn mounts are a common cause and can lead to further damage if ignored.

Are they worth replacing? Factors to consider

Replacing motor mounts is a decision that depends on symptoms, cost, and the vehicle's remaining life. Consider these factors before committing to replacement.

1. Severity of symptoms and the risk of further damage to the engine, transmission, or exhaust components


2. Vehicle age, overall mileage, and how many miles you expect to drive it in coming years


3. Replacement cost relative to the car’s value and your plans (keep vs. sell)


4. Labor accessibility and whether a single mount or multiple mounts require replacement


5. Condition of related mounts and components (transmission mount, torque arms, exhaust hangers) that might also need service

In most cases, addressing worn mounts is reasonable for comfort, safety, and preventing collateral wear. For very old or high-mileage cars, some owners weigh the cost against replacing the entire vehicle or trading in.

What to expect during replacement

Replacement procedures vary by car, but the basics are similar: you must safely support the engine, relieve the mount, replace with a new one, and torque to spec. Access can range from straightforward to involving the subframe or exhaust system.

• Identify the mounts to replace (engine, transmission, and any torque mounts)


• Ensure the engine is supported with a suitable jack or hoist before removing the mount


• Replace with manufacturer-approved mounts and tighten to torque specs


• Check for alignment and inspect surrounding components for wear

After replacement, test drive to ensure smooth operation and listen for any abnormal noises or vibrations.

DIY vs Professional: pros, cons, and safety tips

Some mechanically inclined drivers opt to replace mounts themselves, but the job requires tools, safety measures, and attention to torque specs. Incorrect installation can cause engine damage or unsafe conditions.

• DIY advantages: potential cost savings, hands-on learning, flexibility with schedule


• DIY risks: risk of injury, improper torque, need to support engine properly, potential for missing related issues


• Professional advantages: accurate diagnostics, proper torque, alignment, warranty on parts and labor

If you’re unsure, a professional inspection and quote is the safest path.

Costs, timing, and maintenance considerations

Costs vary by vehicle, mount type, and labor rates. Having one or more mounts replaced also provides an opportunity to inspect related components like mounts, bushings, and engine mounts for wear.

• Parts cost: roughly $50–$350 per mount depending on type and vehicle


• Labor cost: typically $150–$500 per mount, with higher rates for complex access


• Typical total job: many cars range from about $300 to $1200 for all needed mounts


• Newer or luxury vehicles can be more expensive due to specialized mounts and labor complexity

Timing and necessity depend on symptom severity and budget. If you rely on your vehicle daily or have a long commute, replacing faulty mounts sooner can improve safety and comfort.

Summary

Motor mounts are worth replacing when they fail or show clear wear, because they protect the engine and drivetrain, reduce vibrations, and restore smooth operation. If you notice vibration, clunks, or visible wear, have them inspected. Weigh replacement costs against the car’s value and your plans for the vehicle; in many cases, replacing worn mounts is a sensible, value-maintaining maintenance item. Always use professional guidance if you’re unsure about the correct type or torque specifications.

Is replacing motor mounts worth it?

The vibration generated from worn engine mounts can have a noticeable impact on other vehicle components, such as fan belts or radiator hoses, leading to stretching or snapping. So, replacing worn engine mounts is vital to the overall health of your machine.

Can you drive a car with bad motor mounts?

You can technically drive a car with bad motor mounts for a short time, but it is not recommended as it poses safety risks and can lead to more costly damage. Driving with bad motor mounts can cause the engine to move excessively, leading to a loss of control, especially during turns or sudden stops, and can cause further damage to other components like the exhaust, belts, hoses, and transmission. 
You can watch this video to learn about the symptoms of bad motor mounts and how to locate them: 52sMake It Easy MechanicYouTube · Dec 8, 2023
Risks of driving with bad motor mounts

• Engine and transmission damage: Excessive engine movement can cause damage to belts, hoses, exhaust manifolds, and the transmission due to misalignment. 
• Safety concerns: The engine's movement can affect vehicle handling and stability, which can be dangerous in emergency situations. 
• Component failure: In some cases, the engine can shift so much that a component like the cooling fan hits the radiator, or a belt or hose gets damaged. 
• Challenging-to-diagnose problems: Severe engine movement can stress wiring harnesses, leading to intermittent electrical problems. 

What to do

• Address the issue immediately: Get the motor mounts inspected and replaced as soon as possible to prevent further damage. 
• Avoid aggressive driving: Drive gently and avoid sudden starts, stops, and turns to minimize movement. 
• Have the car inspected: A mechanic can determine the severity of the issue and provide the best course of action. 

This video explains why you should never drive your car with bad motor mounts: 57sAuto Repair GuysYouTube · May 18, 2021

How much should it cost to replace engine mounts?

Replacing engine mounts typically costs between $200 and $600 per mount, with the total price varying significantly based on the vehicle's make and model, the type of mount, and your location. The cost is often heavily weighted toward labor, as accessing the mounts can be difficult, while the parts themselves range from inexpensive rubber and steel to more costly hydraulic or electronic components. 
Factors that influence the cost

• Number of mounts replaced: Replacing only one mount is cheapest, while replacing multiple at once can save on labor costs. 
• Mount type: Simple rubber or steel mounts are the cheapest. Hydraulic or active/electronic mounts are more expensive. 
• Vehicle accessibility: Some vehicles have engine mounts that are easy to reach, while others require extensive work to get to, increasing labor time. 
• Labor rates: The cost of labor varies by geographic region and whether you use an independent shop or a dealership. 
• Part choice: Aftermarket parts can be cheaper than OEM (Original Equipment Manufacturer) parts, but quality can vary. 

How to manage costs

• Get multiple quotes: Contact several different repair shops for estimates to compare prices. 
• Ask about labor time: Inquire about the estimated labor hours and how they are calculated to ensure you are being charged fairly. 
• Consider your options: A simple repair on a less expensive car may be more affordable, while a complex repair on a luxury vehicle could cost thousands. 
• Negotiate: Don't be afraid to negotiate the price, especially if you are getting a high quote. 

How long do motor mounts usually last?

Motor mounts typically last between 5 to 7 years or 60,000 to 100,000 miles, but this can vary significantly depending on driving conditions and vehicle use. Factors like aggressive driving, rough roads, and fluid leaks can shorten their lifespan, while factory mounts on some vehicles may last their entire life. 
This video explains the factors that affect the lifespan of motor mounts: 53sLearnToDIY360YouTube · May 10, 2025
Lifespan factors

• Age: Rubber parts, which are common in motor mounts, can become brittle, crack, and detach from the metal over time. 
• Driving habits: Aggressive acceleration, heavy loads, and frequent driving on rough roads can cause them to fail sooner. 
• Vehicle type: Certain vehicles, like high-performance cars or those with large engines, may experience more wear on their motor mounts. 
• Maintenance and leaks: Oil or fluid leaks onto the mounts can cause the rubber to deteriorate rapidly. 

Signs of a failing motor mount

• Excessive vibration: You may feel more vibration than usual in the cabin. 
• Loud noises: Listen for knocking, clanking, or a thudding sound, especially when accelerating or shifting gears. 
• Engine shifting: The engine may appear to be lower or tilted to one side. 
• Jolts: You might feel a jolt or lurch when changing gears or when the engine turns off.