I have read some of the articles describing Blazer noises, but I have a few
things to add.
This noise could be described as clicking or whining, depending on my speed.
It comes from the right front on my 98 Blazer. It slows down to ticking
sound when my speed slows. Then, gets faster and louder as I increase my
speed. In fact on a few occasions, it's been so loud that it'll turn heads
from quite a distance away.
And, it has a mind of its own because I may go a day or two without hearing
it. It does not make the noise when going in reverse and turning right or
left doesn't seem to matter. Also, the one cure for the noise that I've
found is putting the truck in 4wd. As soon as I hit 4 hi, the noise stops.
I hit 2 hi and it comes back....that may be the key clue right there.
I had it in a small shop a while back and the guy drove it for 2 or 3 days
with no noise. He was about to give it back when he finally heard it. He
replaced the lower ball joint on the right side and drove it several miles
back to me with no noise. As soon as I drove it of course it started back up.
I've had it sitting since then.
Any input would be great. I'll check to see if anyone has other questions
for me as well.