A Comprehensive Guide to 1997-2005 Buick Century Engine Mounts
Stop the shaking and clunking by understanding which engine mount your Buick Century needs.
- Symptoms of failure include heavy vibration at idle, clunking noises when shifting, and visible engine rocking.
- Your Century uses a system of mounts, including main supports and upper torque struts ('dog bones').
- Affordable aftermarket brands (Anchor, Westar, DEA) are widely available but may not last as long or be as smooth as OEM/ACDelco parts.
- Replacing all mounts at once is often recommended since they wear out at a similar rate.
Is Your Buick Century Shaking or Clunking?
When an engine mount fails, the signs are hard to ignore. The rubber inside the mount cracks, wears out, or breaks, and it can no longer do its job of absorbing vibration. Some mounts are even filled with a liquid that can leak out when they fail.
Common Symptoms of a Bad Engine Mount:
🎬 Watch: How to diagnose bad engine mount bumps and vibrations.- Excessive Vibration: You may feel a strong vibration through the steering wheel, floor, or seats. This is often worst when the car is stopped at a light with the transmission in Drive.
- Loud Noises: A distinct "clunk" or "thud" when you shift from Park to Drive, or when you accelerate or decelerate, is a classic sign.
- Engine Movement: If you have a helper safely rev the engine while the car is in Park, you might see the engine physically lurch or rock more than an inch or two.
Choosing the Right Aftermarket Mount
For a vehicle like the 1997-2005 Buick Century, you have several aftermarket options. It's important to be honest about the trade-offs between price and quality. While OEM parts from the dealer are an option, most owners of a car this age choose aftermarket parts to save money.
Brand Quality Tiers (Based on Owner Experiences)
Not all aftermarket brands are created equal. Based on mechanic and owner discussions in online forums, here is a general breakdown of what to expect.
- OEM Supplier (ACDelco): ACDelco is often the original parts supplier for GM vehicles. Choosing ACDelco is the closest you can get to the original part that came on your Buick. They generally offer the best fit and longest lifespan but come at the highest price.
- Standard Aftermarket (Anchor, Westar, DEA): These are the most common and affordable brands you will find. Many owners use them due to the low cost. However, be aware that many online discussions report these mounts may be made of harder rubber, which can cause more vibration than the original. There are also reports of them failing much sooner than OEM parts. For an older car, they can be a budget-friendly solution to fix a completely failed mount, but they may not last as long or ride as smoothly.
- Other Aftermarket (Pioneer, Vaico): These brands are also available but have less feedback from Buick owners online. They likely fall into the standard aftermarket category in terms of price and expected quality.
How Much Does It Cost to Replace a Buick Century Engine Mount?
The cost depends on whether you do the job yourself or take it to a shop. The parts themselves are not very expensive.
| Replacement Option | Estimated Cost |
|---|---|
| New Aftermarket Part (DIY) | $25 - $103 per mount or kit |
| Shop Labor Cost | $122 - $179 per mount |
| Total Professional Replacement (1 Mount) | $241 - $298 |
Frequently Asked Questions
How many engine mounts does my 1997-2005 Buick Century have?
Your Buick Century has a system of several mounts. This includes two main load-bearing mounts for the engine and transmission, and at least two upper torque struts (often called "dog bones") that control the engine's rocking motion. Full replacement kits can contain up to 6 pieces, including brackets and mounts.
Can I replace just the one bad mount?
Yes, you can replace only the failed mount. However, all the mounts on your car are the same age. If one has failed, the others are likely weakened and may fail soon. Replacing them all at once can save you from having to do the job again in the near future.
Is replacing an engine mount a DIY job? 🎬 Watch: A helpful guide on how to replace motor mounts.
For a person with some mechanical experience, yes. The job requires safely supporting the engine with a jack and a block of wood while you unbolt the old mount and install the new one. You will need a good socket set and wrenches. For some mounts, you may need to remove a wheel for better access.
Are there any recalls for Buick Century engine mounts?
No, there are no official recalls or common Technical Service Bulletins (TSBs) from GM or the NHTSA specifically for engine mount failure on the 1997-2005 Buick Century.
Helpful Videos
Technical Specifications
The system consists of multiple mounts. Key components include a right-side engine mount (often hydraulic), a left-side transmission mount, and two upper torque struts. Aftermarket interchange part numbers include Anchor 2796, DEA A2901, and Westar EM-2796.
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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 Century:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Buick Century Shaking or Clunking?
- Common Symptoms of a Bad Engine Mount:
- Choosing the Right Aftermarket Mount
- Brand Quality Tiers (Based on Owner Experiences)
- How Much Does It Cost to Replace a Buick Century Engine Mount?
- Frequently Asked Questions
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