Chevrolet Tahoe (2015-2024) Engine Mount Replacement Guide
Experiencing vibrations or clunking noises in your Tahoe? It might be time to check your engine mounts.
- Vibrations at idle and clunking noises are the most common signs of failure for a 2015-2024 Tahoe.
- A GM Technical Service Bulletin (17-NA-166) exists for rough idle issues related to the engine mounts on 2015-2019 models.
- It is strongly recommended to replace both the left and right engine mounts at the same time.
- Aftermarket brands like Anchor, DEA, and Westar are budget-friendly options, but OEM may offer longer life for heavy use.
Is Your Tahoe's Engine Mount Failing?
A failing engine mount on a 2015-2024 Tahoe will make its presence known. The powerful V8 engine puts these parts under significant stress, and wear is inevitable. Ignoring the signs can lead to more significant and costly repairs down the line, including damage to transmission components, exhaust manifolds, and various hoses. Be aware of these common symptoms:
- Increased Vibrations: This is the most common sign. You'll feel an unusual shaking through the steering wheel, floor, or seats, especially when idling in Drive.
- Clunking or Banging Noises: Loud clunks, thumps, or bangs when you accelerate, decelerate, or shift between Drive and Reverse are a major red flag. This sound is often the engine itself moving and hitting other parts.
- Engine Movement: If you have a helper, you can check for this. With the hood open, have them hold the brake and shift from Drive to Reverse. If the engine rocks or lifts more than an inch or two, the mounts are likely worn out.
Known Issues & Bulletins
General Motors issued Technical Service Bulletin (TSB) 17-NA-166 for 2015-2019 Tahoe models experiencing a rough idle or vibration specifically in Drive. The bulletin notes that this can be caused by an internal "ground out" within the engine mounts. The fix involves diagnosing the vibration frequency and potentially installing updated engine mounts and performing a specific mount settling procedure to ensure proper alignment and vibration absorption. While not a recall, this TSB acknowledges a known issue with the original mounts on these vehicles.
Choosing the Right Aftermarket Engine Mount
When replacing your Tahoe's engine mounts, you have a choice between OEM (Original Equipment Manufacturer) and aftermarket parts. OEM mounts are what the vehicle was built with, but they come at a higher price. Aftermarket parts from brands like Anchor, DEA, and Westar offer a more affordable solution.
- OEM-Equivalent (Standard Replacement): Brands like Anchor, DEA, and Westar are common, budget-friendly choices. Forum discussions show mixed experiences; some users report they work fine for daily driving, while others have experienced premature failure. These are generally considered a standard-quality replacement suitable for a daily driven vehicle under normal conditions.
- Quality & Durability: For this specific application on a heavy vehicle with a powerful engine, the durability of budget-friendly aftermarket mounts can be a concern for some owners. While aftermarket mounts can be as durable as OEM, quality can vary between brands. If you tow frequently or drive aggressively, investing in a higher-quality aftermarket brand or an OEM part may provide longer service life.
Pro Tip: It is highly recommended to replace engine mounts in pairs (left and right). A new mount on one side can put extra stress on the old, worn mount on the other side, leading to its failure shortly after. Also, consider replacing the transmission mount at the same time for a complete refresh of your vehicle's driveline stability.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Mount (Single) | $72.08 - $112.17 |
| New OEM Mount (Single) | $140 - $250+ |
| Shop Labor for Replacement (Pair) | $250 - $500 |
Frequently Asked Questions
Do I need special tools to replace a Tahoe engine mount?
Yes, you will need a good set of metric sockets, extensions, and potentially a universal joint or wobble socket to reach all the bolts. Most importantly, you need a secure way to lift and support the engine, such as a floor jack with a block of wood to protect the oil pan or a pole jack. The job can be difficult due to tight spaces, especially on the driver's side.
🎬 See a step-by-step guide on replacing Tahoe and Suburban mounts.Is the driver's side or passenger's side mount more likely to fail?
The driver's side (left) mount often fails first. This is because the rotational force of the engine under acceleration naturally puts more lifting stress on the left side mount.
Are there any recalls for Tahoe engine mounts?
As of early 2026, there are no specific recalls for the engine mounts themselves on 2015-2024 Chevrolet Tahoes. However, a recall (NHTSA 25V-274) was issued for certain 2021-2024 Tahoes with the 6.2L V8 engine for internal engine failures (crankshaft/connecting rods), which could cause a loss of power. This is separate from the common wear-and-tear failure of the engine mounts.
What is a hydraulic engine mount?
Some Tahoes are equipped with hydraulic engine mounts, which are filled with fluid. This design is more effective at damping a wider range of vibrations than a solid rubber mount. A sign of failure for this type is visible fluid leaking from the mount.
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Technical Specifications
OEM Part Numbers: 84175583
The 2015-2024 Tahoe uses two front engine mounts, one on the left (driver) and one on the right (passenger) side, plus a rear transmission mount. Some models may be equipped with hydraulic mounts for improved vibration damping. The driver's side mount is the most common point of failure.
We Have This Part in Stock
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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