Anyone got any ideas on what could be causing this? Not noticeable until about 25-30 mph then around 45 the thump is so rapid it's not discernible. Can the collective power of the garage give me an idea what's going wrong with my car?

10/15/2009 9:43:36 PM

busted belt maybe? I really dont understand the description

10/15/2009 10:10:35 PM

When diving my car, it feels like I have a flat tire, but none of them are flat. Makes noise like and feels like I have a flat, but all of the tires are inflated.

Just started last night.

Not sure what else I'm forgetting to describe about it. I can answer questions if that helps narrow it down.

10/15/2009 10:12:15 PM

you sure you know what a flat feels like???????????

[Edited on October 15, 2009 at 10:25 PM. Reason : maybe you are thinking of a slack tire? flat is pretty obvious- feels like riding on a square wheel.]

10/15/2009 10:24:46 PM

Definitely know what a flat feels like. I can still steer, so yea it's not quite a flat, but feels similar.

It's bad enough to make me pull over and look for the flat one and not find one.

10/15/2009 10:37:39 PM

bad bearing or caliper?

10/15/2009 10:39:45 PM

Sounds like a busted belt.

10/15/2009 10:41:08 PM

Which belt would be busted?

10/15/2009 10:43:20 PM

there is a steel belt inside the tire. the belts have seperated more than likely

http://www.youtube.com/watch?v=If5t783NZFY

[Edited on October 15, 2009 at 10:49 PM. Reason : belt like this. not like a drive belt]

10/15/2009 10:47:26 PM

Is there any way to tell from looking at the outside of the tires which one is bad? The tread on the outside seems to be fine.

10/15/2009 11:02:58 PM

with a busted belt you'll see a bulge on the tread

[Edited on October 15, 2009 at 11:10 PM. Reason : check them and then roll it forward a little to make sure it's not in the tire patch at the time]

10/15/2009 11:09:52 PM

or tou might have some sever cupping going on

could be a strut too

[Edited on October 15, 2009 at 11:11 PM. Reason : could be]

10/15/2009 11:11:10 PM

or a lopsided wheel...

sounds like the wheel isnt moving in a complete circle and seems to be offset somehow

check your lugnutts make sure they are all tight.

your front end could just be horribly out of line as well.

10/16/2009 12:54:29 AM

go down to any junkyard. you can get a matching wheel+tire for $10. problem solved.

10/16/2009 4:52:52 AM

just drive it till it blows out, so you can make sure you replace the right one

10/19/2009 7:45:54 AM