Chevrolet Impala 2013-2017 Engine Torque Strut Mount: A Complete Guide
Experiencing vibrations or hearing clunks in your Impala? Your engine torque strut mount could be the problem.
- The most common symptoms of failure are excessive vibration at idle and a clunking noise when shifting or accelerating.
- This is an easy DIY repair for most owners, typically requiring only 13mm and 15mm sockets and can be done in under an hour.
- Aftermarket brands like Anchor and DEA have a widespread reputation for poor quality and premature failure; OEM/ACDelco is strongly recommended for longevity.
- A vibration at idle could also be related to a known TSB (PI1420A) for misaligned radiator or powertrain mounts, so a proper diagnosis is important.
Understanding the Engine Torque Strut Mount in Your Impala
The engine torque strut mount, also known as the upper engine mount or "dog bone" mount, plays a crucial role in your 2013-2017 Chevrolet Impala. Its primary function is to brace the engine against the twisting forces it generates during acceleration. By absorbing this torque and dampening vibrations, it keeps your engine stable and prevents you from feeling excessive shaking and noise in the cabin. Over time, the rubber in the mount can crack, tear, or degrade from heat and stress, leading to failure.
Symptoms of a Failing Torque Strut Mount
A bad torque strut mount on your Impala will usually provide clear warning signs. Ignoring them can lead to further stress on other engine mounts, axles, and exhaust components. Watch for these common symptoms:
- Excessive Vibration: This is the most common sign. You may feel a strong vibration through the steering wheel, floor, or seats, especially when the car is idling in gear.
- Clunking or Thumping Noises: Loud clunks or thumps when you shift from Park to Drive, accelerate, or decelerate are a tell-tale sign of excessive engine movement from a failed mount.
- Visible Engine Movement: With the hood open, have a helper stand outside the vehicle and watch the engine as you, with your foot firmly on the brake, shift between Drive and Reverse. Significant lurching or jumping of the engine indicates a failed mount. 🎬 Watch how to identify and locate a failing engine mount.
A Note on Vibration Issues
General Motors issued a Technical Service Bulletin (TSB), PI1420A, for 2014-2018 Impalas regarding a vibration felt at idle. This issue could be caused by misaligned radiator mounts or an imbalance in the powertrain mounts, not just a single failed torque strut. If vibration is your only symptom, a full diagnosis is recommended.
Choosing the Right Aftermarket Part: OEM vs. Aftermarket
When replacing your Impala's torque strut mount, you have the choice between Original Equipment Manufacturer (OEM) parts from GM/ACDelco and various aftermarket brands. While aftermarket parts are more affordable, quality can vary significantly.
- OEM (ACDelco): Generally considered the highest quality and best fit, designed specifically for your vehicle. However, they are the most expensive option.
- Aftermarket Brands (Anchor, DEA, Pioneer): These brands offer a budget-friendly alternative. However, owner reviews and forum discussions are mixed.
- Anchor & DEA: Many users across different vehicle forums report that these brands use harder rubber, which can transmit more vibration into the cabin than the original part. There are also widespread complaints about premature failure, sometimes within a few thousand miles, and fitment issues. While some have had no problems, the general consensus points to a high risk of getting a part that doesn't last or performs poorly.
- Pioneer: Reviews for Pioneer mounts are generally more positive than for Anchor or DEA. Some users consider them a better-quality budget option, though still not quite on par with OEM. They are often seen as a reasonable compromise between price and performance for an aging vehicle.
Pro Tip: For engine mounts, many experienced mechanics and vehicle owners recommend sticking with the OEM part if your budget allows. The extra cost can often be justified by better vibration dampening, perfect fitment, and much longer service life, saving you from having to do the job again in the near future.
Cost of Replacement
The cost to replace an engine torque strut mount varies based on the parts you choose and whether you do the work yourself.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part (Anchor, DEA, Pioneer) | $56.39 - $71.82 |
| New OEM Part (ACDelco/GM) | $80 - $140 |
| Shop Labor | $75 - $150 |
| Total Professional Replacement (Aftermarket) | $131 - $222 |
| Total Professional Replacement (OEM) | $155 - $290 |
Note: Prices are estimates and can vary by location and supplier.
Frequently Asked Questions (FAQ)
Is it hard to replace the engine torque strut mount on a 2013-2017 Impala?
No, this is generally considered an easy DIY job for someone with basic tools. The torque strut is usually located at the top of the engine and is easily accessible. 🎬 See exactly where the mount is located on your Impala. The process involves removing a few bolts, swapping the old mount for the new one, and tightening the new bolts to the correct torque specification. The entire job can often be completed in under an hour.
🎬 Watch this step-by-step walkthrough for replacing your upper engine mount.Are there any recalls for the engine mounts on this Impala?
No, there are no specific recalls for the engine torque strut mount on the 2013-2017 Chevrolet Impala. There was a safety recall for older Impala models (up to 2004) regarding engine oil leaks that could cause fires, which involved the engine mounting system, but this does not apply to the 2013-2017 generation.
What tools do I need to replace the torque strut mount?
You will typically need a basic ratchet and socket set. For this specific job on the Impala, 13mm and 15mm sockets are the most commonly required sizes. A torque wrench is also highly recommended to ensure the bolts are tightened to the manufacturer's specification, preventing them from coming loose or damaging the threads.
Should I replace all my engine mounts at the same time?
While you can replace just the failed torque strut mount, it's a good practice to inspect the other engine and transmission mounts at the same time. A failed mount puts extra stress on the others, which can cause them to fail prematurely. If the vehicle has high mileage, or if other mounts show signs of cracking or wear, replacing them as a set can be a wise preventative measure.
Helpful Videos
Technical Specifications
OEM Part Numbers: 20825879
The torque strut mount, often called a 'dog bone' mount, connects the top of the engine to the vehicle's chassis to control rotational force. It consists of a metal or aluminum body with rubber bushings at each end to absorb vibration.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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