it started about 2 days ago. When I accelerate, I feel a slight vibration under the steering wheel. When I let go of the gas pedal, the vibration gets stronger. It's not the steering wheel, feels like it came from something down at the car that send it to the steering wheel.
Right now, it doesn't affect my driving but I'm worried. What's causing the vibration, how do it fix it?
I checked the tire pressure to make sure they're ok. I also checked the power steering oil.
I have a 2004 Toyota Camry sedan. Thank you.