Views: 0 Author: Site Editor Publish Time: 2025-11-05 Origin: Site
The engine mount, often called a motor mount, is a critical but frequently overlooked component in your Mitsubishi. Its job is deceptively simple: to hold the engine securely in place while managing the vibrations and movements generated during operation. A healthy engine mount ensures a smooth, quiet, and controlled driving experience. When it fails, it can lead to a host of problems that affect both comfort and vehicle safety.
An engine mount is a component that connects the engine and transmission to the vehicle's chassis or subframe. It has two primary functions:
1.Secure the Powertrain: It prevents the heavy engine and transmission from shifting around during acceleration, braking, and cornering.
2.Dampen Vibrations and Noise: Modern engines still produce significant vibrations. The mount is designed to absorb and isolate these vibrations, preventing them from transferring into the passenger cabin.
Most mounts consist of a metal bracket that is bonded to a rubber or polyurethane bushing. Some models, particularly in higher-end or newer Mitsubishis, use Hydraulic Mounts or Active Electronic Mounts that contain fluid and solenoids to dynamically adjust damping based on engine load and RPM, providing even smoother operation.
Ignoring a bad engine mount can lead to collateral damage. Be on the lookout for these warning signs:
1.Excessive Vibration: The most common symptom. You'll feel a pronounced shaking through the steering wheel, floor, and seats, especially when the engine is idling or under load (like accelerating with the A/C on).
2.Impact or Clunking Noises: A broken or completely collapsed mount allows the engine to move excessively. You may hear a loud "clunk" or "bang" when shifting from Park to Drive/Reverse, or during quick acceleration or braking.
3.Visible Engine Movement: Pop the hood and have a helper start the engine or gently rev it while in Park (with the parking brake firmly engaged). If you see the engine lurching significantly (more than an inch or so), a mount is likely bad.
4.Misaligned or Stressed Components: Severe engine movement can put stress on other components, such as radiator hoses, throttle cables (in older models), or even the exhaust manifold, potentially leading to their failure.
Replacing an engine mount is a standard repair, but it requires specific knowledge and tools.
◆Labor Intensity: The job often requires supporting the engine with a jack and a wooden block to relieve weight from the mount. Access can be tight, and sometimes other components need to be moved temporarily.
◆Replace in Sets: While you can replace just the broken mount, it is often recommended to replace them in sets (e.g., both side mounts or the front and rear). This is because if one mount has worn out, the others are likely nearing the end of their service life and will provide unbalanced support.
◆Quality of Parts: Using high-quality OEM (Original Equipment Manufacturer) or reputable aftermarket mounts is crucial for longevity and performance. Cheap, low-quality mounts may fail prematurely and not provide adequate vibration isolation.
The number and type of mounts vary by model, engine, and model year. The table below provides a general overview for some of Mitsubishi's most popular models.
Table: Engine Mount Overview for Common Mitsubishi Models
| Model | Generation / Years | Common Engine(s) | Typical Number of Mounts | Notes & Common Failure Points |
|---|---|---|---|---|
| Mitsubishi Lancer / Lancer Evolution | 2008-2017 | 2.0L I4 (4B11), 2.0L Turbo I4 (4B11T - Evo X) | 3 or 4 | The front and rear mounts often wear first. Aftermarket performance mounts are widely available for enthusiasts. |
| Mitsubishi Outlander | 2013-2021 | 2.4L I4 (4B12), 3.0L V6 (6B31) | 3 or 4 | The upper torque strut (roll restrictor) is a common failure point, causing vibrations at idle. |
| Mitsubishi Mirage / Space Star | 2012-Present | 1.2L I3 (3A92) | 3 | A small, economical engine, but mounts still wear out, leading to noticeable cabin vibration. |
| Mitsubishi Eclipse Cross | 2018-Present | 1.5L Turbo I4 (4B40) | 3 or 4 | Newer models may use more advanced hydraulic mounts. |
| Mitsubishi Pajero / Montero | 2000-2021 | 3.2L Diesel I4, 3.5L V6, 3.8L V6 | 4+ | Heavy-duty application; mounts are robust but critical for off-road integrity. |
| Mitsubishi Outlander Sport / RVR | 2011-Present | 2.0L I4 (4B11) | 3 | Similar configuration to the Lancer of the same era. |
1.OEM Mounts: Direct from Mitsubishi. Highest assurance of fit and performance, but most expensive.
2.Aftermarket Mounts:
◆OE-Replacement: Brands like Anchor, Beck/Arnley, or Febi Bilstein offer quality comparable to OEM at a lower cost.
◆Performance: Brands like Innovative Mounts or Cusco offer stiffer polyurethane mounts that drastically reduce engine movement at the expense of increased vibration and NVH (Noise, Vibration, Harshness). These are popular for racing or modified street cars.
◆Economy: Lower-cost options exist but are generally not recommended for long-term reliability.
The engine mount in your Mitsubishi is a vital part of the vehicle's drivetrain system. Paying attention to the early symptoms of failure—like unusual vibrations and noises—can save you from more expensive repairs down the line. When replacement is necessary, investing in quality parts and professional installation (if you are not an experienced DIYer) will ensure your Mitsubishi returns to its smooth, refined, and reliable self. Always consult the specific service manual for your model and year before attempting a replacement.
