A Practical Guide to Engine Mounts for the 2005-2010 Buick Allure
Stop the shaking and clunking by understanding which engine mount your Allure needs.
- Vibration at idle while in gear is the most common symptom of a failed mount on the Allure.
- For a smooth, vibration-free repair, ACDelco (OEM) is the most reliable choice; budget brands like Anchor, DEA, and Westar are a gamble and may cause more vibration.
- Ask your mechanic about TSBs, specifically about installing a heat shield washer on the front mount and properly settling all mounts before tightening to prevent issues.
- The upper torque struts ('dog bones') are a common failure point and are relatively easy and cheap to replace.
Is Your Buick Allure's Engine Mount Failing?
A bad engine mount on your 2005-2010 Allure will make its presence known. You don't need to be a mechanic to notice something is wrong. The most common complaint is a strong vibration felt in the cabin, especially when the car is stopped at a light and in gear. This can be severe enough to rattle the dashboard.
🎬 Watch: See and hear the symptoms of bad motor mounts.Common Symptoms:
- Vibration at Idle: A noticeable shake or shudder that is worse when the car is in Drive or Reverse but may lessen in Neutral or Park.
- Clunking Noises: A distinct "clunk" or "thud" when you accelerate, brake, or shift from Park into Drive or Reverse.
- Visible Engine Movement: If you have a helper safely put the car in gear and hold the brake while lightly pressing the gas, you may see the engine lift or rock excessively. It should not move more than an inch or two.
Known Issues for the 2005-2010 Buick Allure
General Motors has issued Technical Service Bulletins (TSBs) related to engine mounts on this platform. One TSB notes that a popping noise when shifting can be caused by a failed right-side engine mount. Another bulletin warns that high heat from the powertrain can damage the front engine mount's rubber over time and recommends installing a special washer (Part No. 22925178) to act as a heat shield. When replacing mounts, it's critical to follow the proper procedure of loosely installing all mounts, running the engine briefly to let them settle, and then tightening them to spec to avoid vibration.
🎬 Watch: Step-by-step guide to replacing GM 3800 engine mounts.Choosing the Right Aftermarket Engine Mount
When shopping for a new engine mount, you'll find a big difference in price and quality between brands. While saving money is tempting, a cheap mount can cause more vibration than the old one you're replacing.
Brand Quality Tiers
- OEM-Equivalent (ACDelco): As the original equipment manufacturer, ACDelco mounts are designed specifically for your Allure's vibration profile. They are the safest bet for a smooth, quiet ride but are also the most expensive option.
- Quality Aftermarket (Pioneer Cable): Brands like Pioneer are often considered a good middle ground. Forum users have noted their quality can be close to OEM without the high price tag.
- Economy Brands (Anchor, DEA, Westar): These brands are very affordable but have mixed reviews. Many owners and mechanics report that these mounts can fail prematurely or cause significant vibration right out of the box. They might be acceptable for less critical mounts like the upper torque struts (dog bones), but for the main hydraulic mounts that carry the engine's weight, they are a gamble.
- Other Brands (Vaico): Vaico is also available, but there is less specific feedback from Allure owners regarding its quality and performance.
Pro Tip: Many of the vibrations and clunks on the 3.8L V6 are from the upper torque struts, often called "dog bones." These are the easiest mounts to replace and can make a huge difference in how the car feels. If you're on a budget, start by inspecting these first.
🎬 See this quick walkthrough for replacing your upper dog bone mounts.| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $24 - $129 |
| New OEM (ACDelco) Part | $75 - $180 |
| Shop Labor | $150 - $350 (for one or two mounts) |
| Total Professional Replacement | $200 - $550+ |
Note: Labor costs can vary significantly based on which mount is being replaced, as some are much harder to access than others.
Frequently Asked Questions
How many engine mounts does a 2005-2010 Buick Allure have?
Your Allure has a system of mounts. This typically includes a front and rear engine mount (some are hydraulic), a transmission mount, and two upper torque struts or "dog bone" mounts that control engine rocking.
Can I replace just one bad engine mount?
Yes, you can replace just the one that has failed. However, mounts tend to wear out at a similar rate. If one has failed, the others are likely not far behind. Replacing them as a set can save you on future labor costs.
Why does my car vibrate *more* with a new aftermarket mount?
This is a common problem with budget-friendly mounts. The rubber compound may be too hard and doesn't absorb vibration correctly, or the hydraulic component (if it has one) is not properly tuned. It can also happen if the mounts were not "settled" correctly during installation, causing them to be in a bind.
Are there any recalls for the Buick Allure engine mounts?
No, there are no safety recalls issued by the NHTSA for engine mounts on the 2005-2010 Buick Allure. There was a recall in 2005 for a brake pedal component, but it is unrelated to the engine mounts.
Helpful Videos
Technical Specifications
OEM Part Numbers: A2906 A5309 A2818
The 2005-2010 Buick Allure uses a combination of solid rubber and hydraulic fluid-filled engine mounts, as well as upper torque struts. The specific mount type varies by engine (3.6L vs 3.8L) and location on the vehicle.
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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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