A torque strut mount, also known as a torque mount or engine torque mount, plays a crucial role in stabilizing the engine and reducing vibrations. This component helps ensure a smooth driving experience by limiting excessive engine movement. Over time, the torque strut may wear out or fail, leading to rough shifts, excessive vibrations, and engine noise. In this guide, we’ll explain what an engine torque strut mount is, how it works, common failure symptoms, replacement costs, and how to replace it yourself.
What Is a Torque Strut Mount?
A torque strut mount is a support component that connects the engine to the vehicle’s frame or subframe. Unlike traditional motor mounts, which primarily absorb vibrations, the torque mount controls the twisting motion of the engine during acceleration and braking. It helps minimize stress on the drivetrain and transmission components.
How Does a Torque Strut Mount Work?
The torque strut mount functions as a stabilizer for the engine, preventing excessive movement. Here’s how it works:
- Supports the Engine – The mount holds the engine in place and limits movement when the vehicle accelerates or decelerates.
- Reduces Vibrations – By absorbing and dissipating engine vibrations, the torque strut helps ensure a quieter and smoother ride.
- Enhances Drivetrain Longevity – By reducing excessive movement, it prevents wear and tear on surrounding components, including the transmission and other engine mounts.
Types of Torque Strut Mounts and Their Use Cases
Depending on vehicle design, torque mounts can vary in construction and function:
1. Rubber Torque Strut Mounts
- Standard in most vehicles.
- Designed for noise and vibration reduction.
- Pros: Cost-effective, long-lasting, excellent for daily drivers.
- Cons: Can degrade over time due to heat and oil exposure.
2. Hydraulic Torque Strut Mounts
- Common in luxury and high-performance vehicles.
- Filled with hydraulic fluid to further reduce vibrations.
- Pros: Superior noise and vibration absorption.
- Cons: More expensive and prone to fluid leaks.
3. Polyurethane Torque Strut Mounts
- Popular in performance and modified vehicles.
- Offers better durability and stiffness.
- Pros: Improves throttle response, lasts longer than rubber.
- Cons: Can increase vibrations and stiffness.
Common Causes of Torque Strut Mount Failure
Torque mounts wear down over time due to various factors:
- Age and Wear – Continuous exposure to engine vibrations leads to material degradation.
- Oil or Fluid Contamination – Engine oil leaks can deteriorate rubber and hydraulic mounts.
- Aggressive Driving – Hard acceleration and sudden braking put extra strain on the mount.
- Improper Installation – A misaligned mount can wear out prematurely or cause drivetrain issues.
Signs You Need a Torque Strut Mount Replacement
If your torque strut mount is failing, you may notice the following symptoms:
- Excessive Engine Movement – The engine shifts more than usual during acceleration.
- Clunking or Banging Noises – A broken mount may cause metal-to-metal contact.
- Vibrations in the Cabin – Worn mounts fail to absorb engine vibrations properly.
- Rough or Hard Shifting – A failed mount can affect transmission alignment, leading to rough shifts.
- Visible Damage – Cracks, leaks, or torn rubber indicate a failing mount.
When to Replace a Torque Strut Mount
- Every 60,000 - 100,000 miles, depending on vehicle use and driving habits.
- If experiencing excessive vibrations or rough shifting.
- After detecting visible cracks or leaks on the mount.
- During transmission or engine work, as a precautionary replacement.
DIY Guide: How to Replace a Torque Strut Mount
Replacing a torque mount is a manageable DIY project with basic tools. Follow these steps to replace it yourself.
Tools and Supplies Needed:
- New torque strut mount
- Socket wrench set
- Torque wrench
- Jack and jack stands
- Pry bar (if needed)
- Thread-locking compound (optional for bolts)
- Safety gloves and goggles
- Shop towels
Steps to Replace a Torque Strut Mount:
- Ensure Safety – Park the vehicle on a level surface and engage the parking brake.
- Lift the Vehicle (If Necessary) – Some mounts are accessible from the engine bay, while others may require jacking up the car.
- Locate the Torque Strut Mount – Typically found between the engine and the firewall or subframe.
- Remove Mounting Bolts – Use a socket wrench to loosen and remove the bolts securing the old mount.
- Inspect the Old Mount – Look for cracks, wear, or fluid leaks.
- Install the New Torque Strut Mount – Align it properly and tighten the bolts securely.
- Torque Bolts to Spec – Use a torque wrench to ensure proper installation.
- Lower the Vehicle and Test Drive – Start the engine and check for vibrations or noises.
Additional Parts You Might Need
When replacing a torque strut mount, consider checking or replacing these related components:
- Engine and Transmission Mounts – If worn, they may also need replacement.
- Bolts and Bushings – Worn-out bolts should be replaced to prevent mounting issues.
- Motor Mount Brackets – If damaged, they can cause alignment problems.
- Thread Locker – Helps secure bolts and prevents loosening over time.
Conclusion
A torque strut mount is essential for engine stability, reducing vibrations, and maintaining drivetrain alignment. Recognizing signs of wear, understanding torque strut mount replacement, and following a DIY guide can save you time and money. Whether you opt for a rubber, hydraulic, or polyurethane torque mount, regular maintenance ensures a smoother and more efficient ride.
