byrocat

This started a week ago. I get a loud rumble coming from the tires at
highway speeds.

Rumble increases in pitch and volume according to car speed, engine
rpm's do not affect it.

Not present when car is still.

No shaking or vibration detectable.

Does not seem to come from one particular corner of the car.

Marvin

byrocat wrote:
> This started a week ago. I get a loud rumble coming from the tires at
> highway speeds.
>
> Rumble increases in pitch and volume according to car speed, engine
> rpm's do not affect it.
>
> Not present when car is still.
>
> No shaking or vibration detectable.
>
> Does not seem to come from one particular corner of the car.
>
A balancing weight may have fallen off. Or there may be damage to the sidewall of a tire,
that could lead to a blowout.

Mike James

I had the parking brake pads come loose. It make a awful noise but only when
moving
"byrocat" <bdealhoy@sympatico.ca> wrote in message
news:1121347063.368463.197630@g44g2000cwa.googlegroups.com...
> This started a week ago. I get a loud rumble coming from the tires at
> highway speeds.
>
> Rumble increases in pitch and volume according to car speed, engine
> rpm's do not affect it.
>
> Not present when car is still.
>
> No shaking or vibration detectable.
>
> Does not seem to come from one particular corner of the car.
>

Steve

could be a tire issue, but seems strange that all 4 go at the same time...

"byrocat" <bdealhoy@sympatico.ca> wrote in message
news:1121347063.368463.197630@g44g2000cwa.googlegroups.com...
> This started a week ago. I get a loud rumble coming from the tires at
> highway speeds.
>
> Rumble increases in pitch and volume according to car speed, engine
> rpm's do not affect it.
>
> Not present when car is still.
>
> No shaking or vibration detectable.
>
> Does not seem to come from one particular corner of the car.
>

byrocat

Guess that its time to drop by Crappy Tire or Wally Mart and get a
quick check on the tires and balancing.

However, wouldn't losing a balance weight result in a "hammering" or
vibration? So, probably not the tire weight but possibly sidewall
damage somewhere.....

Mystical

Hi, do you think that it could be a wheel bearing or some other type of
mechanical noise, rather that the tires themselves? Good luck, Brad


"byrocat" <bdealhoy@sympatico.ca> wrote in message
news:1121347063.368463.197630@g44g2000cwa.googlegroups.com...
> This started a week ago. I get a loud rumble coming from the tires at
> highway speeds.
>
> Rumble increases in pitch and volume according to car speed, engine
> rpm's do not affect it.
>
> Not present when car is still.
>
> No shaking or vibration detectable.
>
> Does not seem to come from one particular corner of the car.
>

Randy G.

"byrocat" <bdealhoy@sympatico.ca> wrote:

>This started a week ago. I get a loud rumble coming from the tires at
>highway speeds.
>
>Rumble increases in pitch and volume according to car speed, engine
>rpm's do not affect it.
>
>Not present when car is still.
>
>No shaking or vibration detectable.
>
>Does not seem to come from one particular corner of the car.

How old are the tires?
Are they all the same type?
Were they all replaced at the same time?
Have you checked the air prssure?
Have you tried to change the air pressure?
Does it affect handling in any way?
Does it happen on all roads at the same speeds?
Does it come from all 4 tires?
Have you rotated the tires recently?
Are you sure it's the tires?
Has the tranny or driveshaft been off recently?
Have the U-joints/CV joints been checked?
Have the brakes been checked recently?
Have the wheel bearings been checked?
Has the front suspension been checked?
Front and rear suspension bushings been inspected?
How many miles on the shocks?
...get the idea?

I use to install tires. I have seen tires that looked fine on the
outside, but upon inspection of the inside of teh carcass there were
large areas of delamination present. If you suspect bad tires it is in
your best interest to persue the problem at a tire (tyre?) shop.

Tires and brakes are serious, and if you are not sure, it is best to
get it checked.

__ __
Randy & \ \/ /alerie's
\__/olvo
'93 960 Estate

byrocat

Tires haven't been rotated in a while -- well before the sound started,
but I had a slow leak in the driver-side front tire that got pretty bad
in the last month (down to 19 pounds pressure, maybe less, before I
could find a garage that was open and had a working airpump -- yes, I
now check them at elast once a week) The noise started after that
particular Sunday.

That tire has now been replaced to match the pair on the back rims.
Currently, I have 3 BF Goodrich tires, plus a Hercules. Yes, the
Hercules is gone at my next service call.

Still have the sound, but definitely get a noticeable vibration at the
100KPH mark. Not severe but there. Over that, still noise but no
vibration (what an excuse for speeding, not like this one ...
http://reuters.excite.com/article/20...EEDING-DC.html
)

Tranny/driveshaft are untouched.

The otehr items are down for being part of the next service call --
three weeks time when I have a day off.

However, if anythign gets worse, its into the shop that day.

Gary Heston

In article <1121800254.326107.183430@o13g2000cwo.googlegroups.com>,
byrocat <bdealhoy@sympatico.ca> wrote:
[ ... ]
>That tire has now been replaced to match the pair on the back rims.
>Currently, I have 3 BF Goodrich tires, plus a Hercules. Yes, the
>Hercules is gone at my next service call.
[ ... ]

I suggest in the interim that you swap that Hercules to the back and
get matching tires on the front. Differently responding tires on the
front can negatively affect handling.


Gary

--
Gary Heston gheston@hiwaay.net
The Intel ASCI Red supercomputer placed first in the 11/97 list of
the top 500 supercomputers in the world, at 1.338 TeraFLOPs max.
As of 6/05, it wouldn't make the list.

byrocat

Just an update on this. I dropped by Suter's Garage in Aurora to see if
they could take a look at it before they closed. One quick trip around
the block (after spending ten minutes trying to get the &*^#$*^*^#$
engine to start -- the old "sticky sensor" problem with hot starts that
has been mentioned elsewhere) with a mechnic.

He said that his best guess without putting the car up on a hoist (it
was 6:10PM now) was wheel bearing first and flat spot on a tire second.

He also said that it should be done sooner rather than later (couple
days no problem but... don't take any long trips).

Booking in for Friday.