Supporting Vendors / Dealers - Advertising - Shop

2014 Corvette: Techlink Article: Tire Chatter

Source:   GM TechLink
Date:   December 5, 2013

The Corvette always has been built to perform. Part of the ride and handling equation is the high-performance tires available on recent Corvettes.

The 2014 Corvette is equipped with standard P245/40ZR18 front and P285/35ZR19 rear performance summer-only tires and the Z51 Performance Package includes P245/35ZR19 front and P285/30ZR20 rear Michelin Pilot Super Sport ZP summer-only tires. (Fig. 9) These tires may have a chatter noise during low speed turns.

2014 Corvette Stingray Premiere Edition Convertible
Fig. 9

The tread design of the Goodyear F1 tires on the 2011-2013 Corvette Grand Sport and Z06 models also is more susceptible to tire chatter or hop than the tread design on previous F1 tires.

Tire chatter noise, caused by the large amount of tire scrubbing across the pavement, occurs most often during low speed, tight turns (in all directions) when the tires are cool, usually after an extensive ambient soak of the vehicle. The chatter typically diminishes when the tires warm up, but may increase on wet pavement. This is a normal characteristic of the high-performance tires.

It’s important not to confuse a tire chatter condition with a possible rear differential chatter noise.

A vehicle soak of at least eight hours during cool ambient temperatures is required prior to evaluation on a clean, dry asphalt or concrete road surface. There should be sufficient space for two to three full vehicle turns at idle speed. Limit the evaluation to no more than four full vehicle circles.

To evaluate the noise condition:

1. With the engine running and the vehicle at rest, turn the steering wheel until full steering lock is achieved.

2. Shift into gear. The noise should be heard once the vehicle has made one to two circles.

3. With the vehicle moving in a tight circle and the noise present, move the steering wheel in 1/4 turn increments away from the full lock position. A maximum of 1/2 to 3/4 turn should be sufficient to determine the source of the noise.

4. Place a hand at the 6 o’clock position as a reference indicating full lock. Move the steering wheel to the 3 or 9 o’clock position and hold it for two to three seconds. Repeat if necessary for a maximum of four complete vehicle circles.

If the noise is caused by front tire hop, it will reduce in severity or cease during the turning sequence as soon as the steering wheel is turned. A 1/4 steering turn will usually dramatically reduce front tire chatter.

If the noise is caused by rear differential chatter, it will not be reduced in severity when turning the steering wheel, but may be reduced in frequency. If the differential is the cause of the noise, refer to Rear Drive Axle in the appropriate Service Information.

For additional information, refer to Bulletin #09-04-20-001D and to the May 2010 Emerging Issues seminar, course number 10210.05.

– Thanks to Jeremy Richardson and Art Spong

0 (0)
Article Rating (No Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
2014 - 2017 Corvette: Service Bulletin: #14-03-10-001C: Tire Hop / Tire Chatter During Tight Turns at Parking Lot Speeds
Viewed 205 times since Tue, Mar 7, 2017
2017 Corvette: Service Bulletin: #16-NA-296: Tire Performance and Characteristics - (Sep 12, 2016)
Viewed 36 times since Thu, Sep 15, 2016
2014 - 2016 Corvette: GM TechLink: Corvette Competitive Driving Wheel Alignment Tips
Viewed 53 times since Sat, Jun 18, 2016
2014 - 2017 Corvette: Service Bulletin: Clicking Noise from Front and/or Rear Wheels - (Aug 23, 2016)
Viewed 312 times since Thu, Aug 25, 2016
2005 - 2017 Corvette: Service Bulletin: #17-NA-087: Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining
Viewed 134 times since Wed, Mar 22, 2017
2005 - 2020 Corvette: Service Bulletin: #17-NA-087: Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining
Viewed 44 times since Tue, Oct 13, 2020
2015 - 2019 Corvette: Service Bulletin: Tire Replacement / Mounting Information
Viewed 245 times since Tue, Apr 3, 2018
2014 - 2020 Corvette: Service Bulletin: #17-NA-271: Clicking Noise from Front Wheels While Turning at Slow Speeds
Viewed 328 times since Wed, Aug 12, 2020
2014 - 2020 Corvette Grand Sport Z06 ZR1 Stingray Z51: Service Bulletin: #13-03-10-001G: Information on Summer Tire Performance and Tire Cold Weather Cracking - (Oct 9, 2020)
Viewed 91 times since Tue, Oct 13, 2020