1998 Trans Am, A4, completely stock, 75000 miles
I have what might a few seperate problems, or maybe all related.
1. At between 60-75 mph, I get a pulsing vibration through the
steering wheel. If I hold it tight I can barely feel it, but when
holding it lightly there is a fairly significant wobble. Doesn't do
this all the time (and some days are worse than others). I thought
this was wheel balance, and so had them re-balanced a couple of times,
including once after replacing the rims with another (standard 16x8)
set. Tires are BFG KDWS 245/50 and these were also replaced to no
effect. When this happens the interior visors can sometimes be seen
wobbling. This was worse to the point that I could feel it through the
seat before I replaced the rims.
2. At above 40 mph there is a quiet grinding sound from what sounds
like the wheels. This happens whether the car is under load or in
neutral. Seems to get louder with more speed.
3. The steering sometimes feels light.
4. If I look at the car on a level surface from the front, it does not
appear to sit straight. The passenger side appears a little lower than
the driver side.
The first problem has been present since I bought the car a year ago.
None of these are big problems right now but I'm concerned that a
problem may be starting to appear and if it's suspension related I'd
rather catch it now before a catastrophic failure!
Would appreciate any clues as to what might be the problem or problems