4T65E Hard Shifting and whining noise???
 

Hello everyone, I have a 2003 Monte Carlo 3.4 with 77,000mi and I believe it has the 4T65E trans. I had the trans fluid changed at 60,000mi. I noticed a while back when I would shift into low 1, the trans would make a whining/hissing sound. Now I am noticing when the trans is warm only, I hear the whining/hissing noise in all gears and have hard shifting between 1 & 2 and 2& 3. Also I find that if I move the shifter slowly in the space between two different gears, the sound stops, but once I move back into gear, I hear the sound again. I've read up alot on this issue and am wondering if the general consensus is that the problem is the pressure control solenoid? I have not yet had a diagnostic run on it to see what, if any codes are showing. I would hate for the problem to be a clutch pack or trans pump.

Anyone have any thoughts?

Thanks

As far as I know all the transmission silenoids are internal..
I would recommend takeing it to a transmission shop and have them do a scan to findout what it could be causeing the issue noises...

this definitely sounds like a bad shift solenoid...mine started @ 45k. the cost to do a partial rebuild is far higher than a used trans from a yard....

I know this sounds pretty basic...but have you checked the fluid level? I've had a tranny be grossly overfilled by a transmission shop before, and it whined terribly when warm. Once the level was corrected, the transmission was operating normally. Just thought i'd throw that out there, as it would be a welcomed fix I'm sure. ;) LOL

The fluid level is good and looks to be in good condition and doesn't smell burnt. The trans shifts smooth and is quiet, until it gets warm.