Noise after new tires

Tiny
PJHMAH
  • MEMBER
  • 2005 MAZDA 6
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 71,000 MILES
Had four new tires put on this morning. Drove car all day and now noticing odd rumbling noise and ride is rough until I press the brakes or accelerate. Okay when I press gas or brakes. Is it the tires?
Friday, April 19th, 2019 AT 6:01 PM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
Welcome to 2CarPros. It could be the tires. The tread patterns and materials used can make large differences in the amount of noise you hear. It's also possible that the act of lifting it to change the tires moved the suspension into areas that it hasn't been in a while and it's causing a rough ride because the struts and other parts were moved a lot.
A quick test to see if it's the tires or suspension is to drive on different road types and see if the rumble changes or goes away if you drive on concrete, pavement, dirt or gravel. If the noise is there on concrete but goes away on pavement or dirt then it's likely the tires.
The rough ride is harder to test for. You might want to look up the tires for their reviews and see if other people have similar complaints.
Did you alter the tire size or rim size at all? That can make a drastic difference in noise and ride quality as well.
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Friday, April 19th, 2019 AT 6:21 PM
Tiny
PJHMAH
  • MEMBER
  • 2 POSTS
Thank you. The wheel size was not changed. The ride was very smooth all day with the new tires, I only started hearing and feeling the difference at the end of the day. It got so bad that my passenger had me pull over to look to make sure the tires were on tightly. Definitely getting worse. What would do that but go away when I press on the gas or the brakes?
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Saturday, April 20th, 2019 AT 4:28 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,464 POSTS
You may want to take it back to the shop and just have them check things over. It could be something as simple as a wheel weight came off or shifted. Or possibly one of the tires has gone bad. I have seen new tires that were not round or that had defects and started to fail within a few miles.
It's also possible it could be something unrelated like an engine or transmission mount that decided to fail now and you feel that when the engine moves around. To check if that could be the problem open the hood and have someone hold the brake with the car in gear, then step on the gas to make the engine move against the mounts, it will normally move some, maybe an inch or so with good mounts, if it moves 2-3 inches or more then your mounts are failing.
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Saturday, April 20th, 2019 AT 5:47 AM

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