A while back while doing a normal shift from 1st to 2nd (no high revs, just in a little traffic), I heard a slight pop from what seemed to be the tranny. I looked in my rear view to see if I ran over something but didn't see anything. Then I heard a consistent grinding "1-2 marbles in a can" noise from the tranny area. The sound has since then always been present, but it has not gotten worse, it may have even gotten a little less noticeable but it is still very annoying.

I took it to one shop and they definitely agree there is some transmission noise going on, but they were unsure as to where it is coming from or what would produce that noise in the transmission, also they observed that the noise happens in every gear accelerating or decelerating except in 5th gear.

Ideas? Other threads that I have missed in my searches? Thanks.

 

Start looking for another tranny to be on the safe side. Replace the fluid to see if there is any abnormal debris that comes out and go from there.

 

I have the same thing. no diagnoses or cure found yet. the transmission still seems to shift well. there was a thick metallic paste on the magnet on the last oil change so it's not the syncros.

 

sorry man but a new tranny is probly in your future. i had the same problem and one day when i when to go after a stop light my transmission just started kicking its self out of 1st gear and now in every gear except 5th and 6th if im not accelerating the tranny would grind.......new trans for my and now its all good.....