j894
02-17-05, 08:49 PM
Ok this has been driving me nuts for a while now,
Just about every time my transmission shift from 2-3rd gear regaurdless of
what speed, or under what load, it makes this thump noise. Kinda sounds like
a universal joint but it only does it on the 2-3rd shift, it doesnt happen any
other time while driving. I could be accelerating go through first, then second
& let off the gas totally(engine running at idle speed) before it goes into 3rd,
that it still does the thump, or knock...w/e
The tranny fluid is fine full, clean, doesnt smell burnt or anything. Is it
possible some of the cluth bands/packs w/e are somehow worn?
Also, If I have it in park with my foot off the brake, & all the wieght resting
against the tranny It makes this whirling, scraping kinda noise. Its hard to
describe in words. With this and another Vibration Im getting in OD lockup at
1k rpms I was told it sounds like I have a cracked flexplate. Can anyone
relate to this. I jsut wanna fingure out the problem.
The reason Im so concerned is cause either a built up 4.3 or a 350 is
going in there pretty soon & I dont need another $1100 rebuild bill
Btw its an auto, it was rebuilt in the summer of 2003. has about 20k on
it since then.
I read on another non-S forum that its possble the TC can be out
of balance? is this possible..or what causes it?
Please help me...
thanks
Edit: forgot to add, while I was driving it earlier I noticed that once in a while
it doesnt make this thump condition.
Just about every time my transmission shift from 2-3rd gear regaurdless of
what speed, or under what load, it makes this thump noise. Kinda sounds like
a universal joint but it only does it on the 2-3rd shift, it doesnt happen any
other time while driving. I could be accelerating go through first, then second
& let off the gas totally(engine running at idle speed) before it goes into 3rd,
that it still does the thump, or knock...w/e
The tranny fluid is fine full, clean, doesnt smell burnt or anything. Is it
possible some of the cluth bands/packs w/e are somehow worn?
Also, If I have it in park with my foot off the brake, & all the wieght resting
against the tranny It makes this whirling, scraping kinda noise. Its hard to
describe in words. With this and another Vibration Im getting in OD lockup at
1k rpms I was told it sounds like I have a cracked flexplate. Can anyone
relate to this. I jsut wanna fingure out the problem.
The reason Im so concerned is cause either a built up 4.3 or a 350 is
going in there pretty soon & I dont need another $1100 rebuild bill
Btw its an auto, it was rebuilt in the summer of 2003. has about 20k on
it since then.
I read on another non-S forum that its possble the TC can be out
of balance? is this possible..or what causes it?
Please help me...
thanks
Edit: forgot to add, while I was driving it earlier I noticed that once in a while
it doesnt make this thump condition.