When I am driving I am hearing a Grinding/Rubbing sound coming from the front left drivers side. Anyone know what I can do to fix it?

 

do you feel it in your seat or in the steering wheel?

wonder if it is a wheel bearing.

possible wheel liner falling onto the tire while driving?

 

I do not feel it, I can hear it if I roll down the window and have the radio off.

 

brake pads need to be replaced

 

I had new brake pads put on but kept the old rotors, do you think it could be the old rotors?

 

Could be. Any change in noise level/type when turning or going over bumps?

 

i'd be skeptical of brake pads causing this noise if you are just driving. your pads should not be engaged while driving. I can understand if they do it first thing in the morning if the rotors have light rust...

I'm on my third set of pads and still using my OEM rotors, which are still in good shape.

 

When?

If the pads were put on recently -- before you started hearing the noise, then, not being a believer in coincidence, I vote for something related to the pad replacement. If there was a high, very narrow ridge of corroded rotor, at the outer edge of the rotor where the other pads did not touch the rotor, it is possible that the new pads are grinding down that ridge, while at the same time having a groove worn into themselves, which is nothing to worry about.

If you ride in the vehicle as front passenger, do you hear the same sound on that side, as you do when you're driving? If you do, that just about confirms the above.

Another easy thing you can do to narrow down the possibilities to something brake-related is to get up to highway speed and brake pretty hard down to say 10 mph, then release the brake, back up to highway speed, etc. a few times. Then just drive along and allow the rotors to cool and see what you hear. ("see what you hear" -- if you can do that, I guess you've found your problem!).

 

I think it is exactly what you said the pad wearing down the uneven rotor because after a week of driving I no longer hear the noise.