Sonata NF (2006-10) :: Transmission Noise When Driving For A While At Normal Local Road Speeds
Mar 28, 2011
My wife's 09 Sonata SE AUTO 4-cycl.. I drove it last weekend and discovered a strange noise that can be heard after driving for a while at normal local road speeds.
The sound is like a combination of a whine and something that sounds like radio static. It can be heard very easily with the radio off and stopped at a red light. However, this sound also exist while the car is in motion. It becomes more difficult to hear as the road noise increase.
When I shift from D to N while stopped or driving, the noise immediately goes away. When I shift back to D, it sometimes comes back.
The consistent pattern seems to be that the noise will occur after having driven for a while at a consistent speed of at least 30-40mph. If I drive around the neighborhood for a while at low speeds and then stop, the noise will not be there.
I have not made effort to hear it from the outside of the car.
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I've been having tough times renting a car during the weekend and I still drive on short distances, but I'm afraid it could be a safety issue or that I can be making things much worse to repair. The noises got worse since the beginning, but I don't think they are getting any worse anymore.
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this noise start like 4 month ago. I have taken the car to two mechanics and they weren't able to find where the noise is coming from. i suppose that the problem isnt really that tricky.
is kind hard to describe the nature of the sound.
mostly happen when i go over broken road or bumps where the suspension have to move up and down a little but very quickly
Hyundai Sonata 2006 Front susp noise
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