I bought my car in August of 2008. It has ran like a dream up until about 2 months ago. When I drive over 50+ mph the car sounds like a race car like it's taking all it has to run. Once I slow down to under 50 it purrs like it's supposed to. I've had the front end aligned, tires balanced and rotated, one set of brake pads replaced, but I still don't what causing the sound. It sounds like it's coming from the tires, but I replaced one of them and it's still a problem. I'm frustrated with it. I have to drive to work with the music turned all the way up to drown out the sound.
The front end doesn't shake or anything it just sounds really funny and I know it's something because my car didn't start making this sound until a few months ago.

Thanks for your help in advance!

i need help on this it is the only car i have.

I had the motor and computer replaced.The motor runs fine but I am getting things on the computer that I have never seen before.

The same thing happened on the passenger side and the light was replaced. Replaced the driver's side light with no luck.

the top of the engine is on my way do i have take it out then the valve cover

it is entered via the radio.

The window is shattered and its out of warranty,so i need to do this myself.

where can I get a routing diagram of the vacumn lines that operate the doors for the heat there are 3 red, yellow, and brown. Its a 2000 dodge ram, 1500, 5.2 engine.

where is this blead door motor located in 2000 ram 1500

i think there is a clip or something alike is fixing it to the door , it is showing "srs" light on my dash board. please help

My check engine light is on as well.

light stays on and flashes every so often while driving. engine sounds and feels like I have a fouled sparkplug.

i just can't locate wherte i wrote it down, and my shop doesnt open until monday.

The tranny is starting to shift hard and slip.

where are the spark plugs located on a 2003 chrysler sebring coupe lxi 2.4 liter engine