A Comprehensive Guide to the Engine Mounts on a 2019-2024 Buick Enclave
Feeling a new vibration or hearing a clunk in your luxury SUV? Your engine mounts may be the reason.
- The most common symptom of a bad mount is a vibration at idle while in Drive, which may be related to a known issue outlined in TSB 17-NA-166.
- Loud clunks when accelerating or shifting are a serious sign of a failed mount that should be addressed promptly.
- ACDelco is the OEM supplier; choosing their aftermarket part is the most reliable way to restore the Enclave's smooth ride.
- Due to the need to support the engine and properly 'settle' the new mounts, professional installation is recommended for this job.
Is Your Enclave's Engine Mount Failing?
A worn engine mount on a 2019-2024 Buick Enclave will make its presence known. The symptoms are often subtle at first but will worsen over time. Ignoring them can lead to damage to other components from excessive engine movement.
Common Symptoms:
- Vibration in the Cabin: This is the most common sign. You'll feel an unusual vibration through the steering wheel, floor, or seats, especially when the vehicle is stopped and in Drive. This may not be present when the car is in Park or Neutral.
- Clunking or Thudding Noises: You may hear a distinct 'clunk' or 'thud' when you accelerate from a stop, brake, or shift from Park into Drive or Reverse. This is the sound of the engine shifting excessively and hitting its limits. 🎬 Watch: See common signs and symptoms of bad engine mounts
- Excessive Engine Movement: If you have an assistant safely rev the engine while the vehicle is in Park with the hood open, you might see the engine rock back and forth more than an inch or two. 🎬 Watch: See what a broken Enclave torque strut mount looks like This is a clear sign of a failed mount.
Known Issue: Technical Service Bulletin for Vibration
General Motors has issued Technical Service Bulletin (TSB) 17-NA-166 for some vehicles, which can include the Enclave platform. This TSB addresses customer complaints of a rough idle or vibration felt in the cabin when in Drive. The cause is identified as a 'ground-out' condition within the engine mounts. The fix involves a specific procedure for installing and 'settling' the new mounts to ensure they are not binding and are properly aligned. If you replace your mounts and still feel a vibration, your mechanic may need to follow this specific GM procedure.
Choosing the Right Aftermarket Engine Mount
When replacing engine mounts, you have a choice between OEM and aftermarket brands. For a vehicle where ride quality is paramount, this choice matters.
- ACDelco: As the original equipment (OE) supplier for General Motors, ACDelco is the benchmark for quality and fit. Choosing an ACDelco aftermarket mount is the safest way to restore the original ride feel and performance. They are engineered specifically for your Enclave's engine and chassis to absorb vibrations correctly.
- Anchor: Anchor is a well-known aftermarket brand that offers a more budget-friendly option. While functional, some general user experiences suggest that budget mounts can sometimes use harder rubber compounds, which may not dampen vibrations as effectively as the OEM design, potentially leading to a harsher ride. For a part so critical to ride comfort, sticking with the OE supplier is often worth the small price difference.
How Much Does an Engine Mount Replacement Cost on a 2019-2024 Buick Enclave?
The total cost depends on which mount is being replaced and local labor rates. The 2019-2024 Enclave has multiple mounts, including front, rear, and side transmission mounts. The prices below are estimates for replacing a single, common-to-fail mount.
| Part Type | Estimated Part Cost |
|---|---|
| New OEM (Dealer) | $180 - $240 |
| New Aftermarket (ACDelco, Anchor) | $86.30 |
| Shop Labor | $222 - $326 |
| Total Estimated Cost (Aftermarket Part + Labor) | $308 - $412 |
Pro Tip: Engine mounts often wear at similar rates. If one has failed completely, the others are likely worn. It's wise to have all mounts inspected and consider replacing them as a set to save on future labor costs and ensure proper engine alignment.
Frequently Asked Questions
How many engine mounts does my 2019-2024 Enclave have?
The 3.6L V6 Enclave typically uses a set of four mounts to secure the engine and transmission: a right-side engine mount, a front torque strut mount (also called a dog bone), and two transmission mounts. AWD models may have slightly different configurations.
Can I replace just one failed engine mount?
Yes, you can replace just the one that has failed. However, a failed mount puts extra stress on the remaining mounts, causing them to wear out faster. For the best long-term results and to avoid paying for labor multiple times, it is often recommended to replace them in sets or at least replace the other mounts that show signs of wear.
Is replacing an engine mount a DIY job?
This job is rated as advanced for a DIY mechanic. While the upper torque strut mount can be relatively easy to access, 🎬 Watch: Step-by-step guide to replacing the upper torque strut mount other mounts require supporting the engine's weight with a proper engine brace or a floor jack and wood block. Attempting to support the engine directly on the oil pan without a wood block can lead to cracking the pan. Due to the complexity and safety risks, this job is often best left to a professional mechanic.
Why does my car still vibrate after installing new mounts?
If you still feel a vibration, especially at idle, it could be due to two reasons. First, lower-quality aftermarket mounts may use a harder rubber that doesn't absorb vibrations as well as the OEM part. Second, the mounts may not have been installed and settled correctly. Refer to GM's TSB 17-NA-166, which details a specific procedure to align the mounts and prevent them from binding, which causes vibration.
Helpful Videos
Technical Specifications
OEM Part Numbers: 3517 84499830
The 2019-2024 Buick Enclave uses a set of hydraulic and/or solid rubber mounts to secure the 3.6L V6 engine and 9-speed automatic transmission. There are typically four main mounts: right engine, front torque strut, left transmission, and rear transmission.
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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.
- Buick Enclave:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Enclave's Engine Mount Failing?
- Common Symptoms:
- Known Issue: Technical Service Bulletin for Vibration
- Choosing the Right Aftermarket Engine Mount
- How Much Does an Engine Mount Replacement Cost on a 2019-2024 Buick Enclave?
- Frequently Asked Questions
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