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Equinox Vibration
equinoxowner2
Member Posts: 5
in Chevrolet
My 2010 is encountering a lot of vibration (chatter) underneath the vehicle. Feels like the front under the motor but I can't discount the rear end.
Usually occurs at 50-55 MPH. Will occur randomly using the cruise control or applying the gas pedal at steady speeds. It appears to stop as soon as you remove your foot from the gas pedal or disengage the cruise control.
Dealer has eliminated a transmission issue and provided computer updates which they thought fixed the issue. Mechanic rode with me and acknowledged the issue.
I only recognized the issue after replacing with new tires but the dealer rechecked the tires for correct balancing.
Any thoughts would be appreciated.
Usually occurs at 50-55 MPH. Will occur randomly using the cruise control or applying the gas pedal at steady speeds. It appears to stop as soon as you remove your foot from the gas pedal or disengage the cruise control.
Dealer has eliminated a transmission issue and provided computer updates which they thought fixed the issue. Mechanic rode with me and acknowledged the issue.
I only recognized the issue after replacing with new tires but the dealer rechecked the tires for correct balancing.
Any thoughts would be appreciated.
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Any way to determine if the tires are delaminating? There are no visual sizes. The reason I have new tires is that the olds were visually delaminating - all 4 of them.
The car idles well but does have a ping at 1500 RPM similar to what is described in another thread.
The motor mounts and transmission mounts need to be checked. Good idea.
When purchasing NEW tires consider the following:
A tire should not sit on a shelf is some warehouse for more than two (2) years before it is put on a vehicle. ----- (Tire rot from the inside out!) ---- A SIX (6) year old tire that is on the vehicle, and in use, is NOT a safe tire. ----- You will notice very small cracks on the sidewalls of these old tires. The tire structure has been compromised! ---- It is an accident looking for a place to happen!
You need to check all four tires for the "manufacturing date code." ----- Some manufacturers put the number on the inside of the tire wall.
The first two digits are the week the tire was manufactured. ---- The last two digits are the year. ------ (All of your tires should have the same production date because you purchased them as a set!) ---- If you find an older tire, I would suspect that tire for your vibration problems.
A few years back there was a "major news story" that a department store was selling NEW tires that were up to 12 years old. ----- If I was taking delivery of a new vehicle, I would check the number on all four tires. They should be less than two years old. Anything older I would stop the delivery of the vehicle! --- I would put this requirement into the purchase contract.
All the best! -------- Dwayne
I have emailed GM and Michelin for additional suggestions.