Like I said before, I really don't know about cars but, I don't really
think that the pressure was too low but, I did add a little air to the
back two tires.  And, its really hard for me to give a description of
the noise I was hearing but, it sort of sounded like a humming noise or
even that noise that is made when something is sticking out of your car
door when you close it and then you drive fast and it makes that little
noise.  But, like I said, its really hard to describe.  And my car is
brand new so... I don't know why it would be making that noise. The
other tires were ok.

Scott Dorsey wrote in message
emc279$fe6$1@panix2.panix.com:

So the sound went away after you pumped up the tyre? Looks as if it was the
cause - unless you were driving on a noisy surface (eg a concrete road with
drainage ridges moulded into it) before pumping up the tyre and a quieter
surface (eg tarmac or surface-dressing) afterwards.

Yes, that's a fairly crucial question. If the tyre pressure *was* more than
a few PSI low, that could result in tyre noise. With modern cars, you can
drive with an almost flat *rear* tyre and not feel much difference in the
handling of the car. I hope when you pumped up the tyre, you did so to the
correct pressure (and checked/inflated all the other tyres at the same time)
rather than just thinking "I'll put a bit more air in it" ;-)

I drove several miles with a tyre that was about 5 psi (gulp!) by the time I
got to a garage. This was in a Peugeot 306 (about the size of a Ford Focus
or a VW Golf) with front-wheel drive. The only thing that made me
suspicious, and stop to check by eye, was that something felt "not quite
right" with the back end, though so slight that I wondered whether I was
imagining it - if I hadn't driven the car every day for 7 years, I'd never
have noticed the symptom. The tyre didn't look to be bulging or to be
sitting any lower than one on the other side, so I drove cautiously to the
nearest garage. I was horrified when the tyre pump said that the tyre was
about 5 psi - it should be about 35. I was amazed at how little effect such
a low pressure had on the handling and the tyre noise of the car.

Well, I'm not quite sure if it was a flat or not.  I just know that it
was a weird sound that wasn't their the night that I parked my car.  I
just know that this morning was the first time I had driven it since I
picked it yesterday from the Tow company.  It was pretty loud noise
that sounded like it was coming from the back.  It was like a little
humming noise almost.  I can't really explaine the noise though.  But,
I am going to listen a little more closely to it today while I am on my
home from work.

It was towed because I was over a friends house and they didn't tell me
that I needed a parking permit to park in the parking lot.   But, my
car wasn't broken or anything.  I've only had my car for about 2 weeks
now so there is no way it should be making that noise.