Is Your 2020 Corvette Making Noise? A Bushing Problem?

How to Address Bushing-Related Issues

Dealing with bushing issues in your 2020 Chevrolet Corvette can be frustrating, but understanding the symptoms and potential fixes can help you address the problem effectively. Owners have reported various issues related to bushings, ranging from noises to handling problems. As one owner shared: "The bushings I installed today were so loose, there was a visible gap from the bar (top picture)" (vette4fl [https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-676.html]). This guide will help you diagnose and potentially fix these issues.

Symptoms

Worn or damaged bushings in your vehicle can manifest in a variety of ways. One common symptom is unusual noise coming from the suspension. This noise can range from squeaks and rattles to clunking sounds, especially when driving over bumps or uneven surfaces. The noises are often a direct result of the bushing material degrading, leading to metal-on-metal contact or excessive play.

Another symptom that owners have reported is a noticeable increase in road noise. This can manifest as a general increase in the sound level within the cabin, or as specific noises that seem to be originating from the suspension components. Deteriorated bushings fail to properly isolate the chassis from road vibrations, allowing more noise to permeate into the car's interior.

Harshness in ride quality is another indicator of potential bushing problems. If your truck starts to feel less comfortable and more jarring, particularly over rough roads, it could be a sign that the bushings are no longer effectively cushioning the impacts. This harshness can also be felt as vibrations through the steering wheel or seats.

Beyond noise and comfort, worn bushings can also impact the handling of your vehicle. Owners may notice increased play in the steering, making it more difficult to maintain a straight line or execute precise turns. "To replace control arm bushings requires complete disassembly. During reassembly replace ball joints tie rod ends etc . in my case after front end rebuil car is still “squarely”" (biackbenz [https://www.corvetteforum.com/forums/c3-general/4964305-shaking.html]). This degraded handling can make your C8 less responsive and less predictable, potentially compromising safety.

Most Likely Cause

The primary cause of bushing-related issues in the 2020 Chevrolet Corvette, as indicated by owner reports, is wear and tear on the ball joints and other related suspension components. Over time, the bushings made of rubber or polyurethane can degrade due to constant stress, exposure to the elements, and general aging.

This degradation leads to increased play within the suspension system, causing the symptoms described above. Loose or worn ball joints can cause vibration and shaking in the steering wheel, particularly at higher speeds. The material of the bushings can crack, split, or completely disintegrate, losing their ability to effectively dampen vibrations and maintain proper alignment.

Furthermore, the environment plays a significant role in bushing deterioration. Exposure to road salt, oil, and other contaminants can accelerate the breakdown of the bushing material. Heat generated from the engine and exhaust system can also contribute to the premature aging of bushings, especially those located near these heat sources.

How to Diagnose

Diagnosing bushing problems in your car requires a systematic approach. Begin with a visual inspection of all accessible bushings, focusing on those in the suspension and steering systems. Use a flashlight to get a better view, and look for signs of cracking, splitting, or complete disintegration. Pay close attention to the areas around the control arms, sway bars, and ball joints.

Next, perform a physical inspection by attempting to move the suspension components by hand. With the vehicle safely supported on jack stands, try to rock the wheels back and forth and up and down. Any excessive play or looseness in the joints indicates worn bushings. You can also use a pry bar to gently test the bushings for movement.

To further pinpoint the source of the problem, enlist the help of an assistant to rock the vehicle while you listen and feel for any unusual noises or vibrations. This can help you isolate the specific bushing that is causing the issue. Pay attention to any sounds emanating from the suspension components as the car is rocked.

Tools needed for diagnosis include:

• Jack and jack stands: To safely lift and support the vehicle.
• Flashlight: To inspect hard-to-see areas.
• Pry bar: To test bushings for movement and play.
• Gloves: To protect your hands.
• Safety glasses: To protect your eyes.

Step-by-Step Fix

Replacing worn bushings can significantly improve the ride quality and handling of your C8. Here's a step-by-step guide to help you through the process:

1. Prepare the vehicle: Safely lift the vehicle using a jack and secure it on jack stands. Ensure the vehicle is stable before proceeding. As one owner reported: "Pushed onto shoulder (lucky my son was with me). So glad I have a triple A premium account, rollback was there in 20 minutes. 140 miles back to home, have the 200 mile plan, so off we go" (ariZona06 [https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-1270.html]).

2. Remove the wheel: Use a lug wrench to loosen the lug nuts and remove the wheel. This will provide access to the suspension components.

3. Disconnect the sway bar (if applicable): If the bushing you're replacing is on the sway bar, disconnect the sway bar end links. This may involve removing bolts or nuts securing the end links to the sway bar and suspension.

4. Remove the old bushing: Depending on the type of bushing, you may need to use a bushing press or a specialized tool to remove it. Some bushings can be pressed out, while others may require cutting or burning them out. Be careful not to damage the surrounding components. As one owner shared: "Fixed the drivers side window wobble. The plastic bushings that run along the rails had worn out and cause a good 1.5" wobble at the top of the window" (Markolc1981 [https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-682.html]).

5. Clean the mounting surface: Once the old bushing is removed, clean the mounting surface to ensure a proper fit for the new bushing. Remove any rust, dirt, or debris that may be present. "I was going to just have them soda blasted to clean them up, instead decided to powder coat them clear after cleaning. The shop owner and friend convinced me doing them in an aluminum color would work better, after seeing some examples I agreed" (cdee63 [https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-1084.html]).

6. Install the new bushing: Apply lubricant to the new bushing and the mounting surface to ease installation. Use a bushing press or specialized tool to press the new bushing into place. Ensure the bushing is properly seated and aligned.

7. Reassemble the suspension: Reconnect the sway bar end links (if applicable). Reinstall the wheel and tighten the lug nuts to the manufacturer's specified torque.

8. Lower the vehicle: Carefully lower the vehicle to the ground.

9. Test drive: Take the vehicle for a test drive to ensure the issue is resolved and the suspension is functioning properly. Listen for any unusual noises and check for proper handling.

Parts and Tools Needed

Here's a list of parts and tools you may need for this job:

• Replacement bushings (specific to the component you're replacing)
• Bushing press or specialized bushing removal/installation tool
• Socket set
• Wrench set
• Torque wrench
• Jack and jack stands
• Gloves
• Safety glasses
• Lubricant (such as silicone grease)

Real Owner Costs

The cost of replacing bushings can vary depending on the specific bushing, the brand, and whether you choose to do it yourself or hire a professional. Here are some examples based on owner reports:

• DIY Replacement: Purchasing replacement bushings can cost anywhere from $20 to $100 per bushing, depending on the quality and brand. The cost of specialized tools, such as a bushing press, can range from $50 to $200.
• Professional Installation: Hiring a mechanic to replace bushings can cost between $200 and $500 per bushing, including parts and labor. The labor costs will depend on the complexity of the job and the hourly rate of the mechanic.
• "I got my Z06 sways for 200 bucks off marketplace. Bought new bushings and it really made the Coupe handle much better and definitely you notice the better roll control in fast corners." ($200) Missileboy (https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-1206.html).

Prevention

Preventing bushing problems in your car involves regular maintenance and proactive measures. Here are some tips to help extend the life of your bushings:

• Regular inspections: Inspect your vehicle's bushings regularly for signs of wear and tear. Catching problems early can prevent more extensive damage.
• Avoid harsh driving: Aggressive driving, such as hitting potholes or driving over rough terrain, can accelerate the wear of bushings.
• Keep bushings lubricated: Applying a silicone-based lubricant to the bushings can help keep them pliable and prevent cracking.
• Protect from contaminants: Avoid exposing the bushings to road salt, oil, and other contaminants that can degrade the material.
• Use quality replacement parts: When replacing bushings, opt for high-quality parts that are designed to withstand the demands of your vehicle.

What Owners Say

Real experiences from CHEVROLET owners:

Success Stories

"Fixed the drivers side window wobble. The plastic bushings that run along the rails had worn out and cause a good 1.5" wobble at the top of the window." — Markolc1981 (source)

Owner Experiences

"To replace control arm bushings requires complete disassembly. During reassembly replace ball joints tie rod ends etc . in my case after front end rebuil car is still “squarely”." — biackbenz (source)

"Dropped my control arms and knuckles off at the powder coater this morning. I was going to just have them soda blasted to clean them up, instead decided to powder coat them clear after cleaning." — cdee63 (source)

"Pushed onto shoulder (lucky my son was with me). So glad I have a triple A premium account, rollback was there in 20 minutes. 140 miles back to home, have the 200 mile plan, so off we go." — ariZona06 (source)

Lessons Learned

⚠️ "I still have a feeling it's the tires / rims. I remember when putting the wheels on, looking at the hole in the wheels and the hub diameter they were not perfectly centered, but very close." — ALLEN007 (source)

⚠️ "I am currently running the @SacCityCorvette diff mount and like it a lot. unfortunately I still get bad wheel hop if I try to clutch kick the car which saddens me deeply." — Mr. Black (source)

Pro Tips from Owners

💡 "A tip I picked up from Terry at Vorshalg ​​​​​​ https://www.youtube.com/watch?v=qx3P51W7HV0 Good info going forward! The bushings I installed today were so loose, there was a visible gap from the bar (top picture)." — vette4fl (source)

💡 "Did you make sure to use hub-centric wheels, or adapters to make them hub centric? Is there a chance that the wheel is not aligned correctly on the hub?" — ALLEN007 (source)

💡 "You'd think for $30 they could put in an extra one. I also did the tip in window adjustment and no more wind noise by my ear." — capeokw56 (source)

Real Repair Costs

"It's certainly not the "good" fix, but it did end up being a $0 fix. The little black plastic bushing is the stock bushing Pictured there is a piece of a replacement window regulator kit that I got cheap on Amazon." — Markolc1981 (source)

"I got my Z06 sways for 200 bucks off marketplace. Bought new bushings and it really made the Coupe handle much better and definitely you notice the better roll control in fast corners." — Missileboy (source)

"Quote: Originally Posted by Stingroo See, my problem is I can't spend $1900 on seats for the car I paid $3700 for. I like where your head's at, but I just can't bring myself to do it. you sound like me talking to my wife after she asked me to LS swap her hummer ...which ALMOST didn't hold water considering i'd just did $20k of engine & driveline work to the C5 the year prior." — _zebra (DIY) (source)

FAQ

Q: How long does it take to fix bushing problems?

A: The time required to replace bushings can vary depending on the specific bushing and your experience level. A simple bushing replacement may take a couple of hours, while more complex jobs can take several hours or even a full day.

Q: Can I drive with worn bushings?

A: While it is possible to drive with worn bushings, it is not recommended. Worn bushings can negatively impact handling and safety.

Q: Is this a common issue on the vehicle?

A: Bushing wear is a common issue on most vehicles, especially those driven in harsh conditions. The frequency of bushing replacement will depend on driving habits, road conditions, and the quality of the original bushings.

Q: DIY vs mechanic - what's recommended?

A: Whether to DIY or hire a mechanic depends on your skill level and the complexity of the job. If you are comfortable working on your vehicle and have the necessary tools, replacing bushings can be a DIY project. However, if you are unsure or lack the tools, it is best to consult a professional mechanic. "It's certainly not the "good" fix, but it did end up being a $0 fix. The little black plastic bushing is the stock bushing Pictured there is a piece of a replacement window regulator kit that I got cheap on Amazon" (Markolc1981 [https://www.corvetteforum.com/forums/c5-general/3976072-what-did-you-do-to-your-c5-today-682.html]).