Clicking & clacking in gear and strange shifting

[ez at nova]

Less than two years ago, I had my tranny rebuilt by Performance Transmissions with a 3000 stall street/strip setup. Since then the car has made 2 or 3 passes at the track one time and maybe 2000 miles of cruising around.
Last summer when it was very hot once or twice, I noticed the car was shifting later than usual, pretty much equally in all gears but more noticable fron 1-2 since it is the most dramatic. It waited until 4000+ to shift, and this was under minimal throttle.
Today, the same thing started to happen, after the car got hot from riding around for a half hour or so, but now in addition to the shifting strangely, it all started with a very strange clicking/air leaking sound. I thought it was my dump pipe leaking or a header leak, but it went away when I would rev the engine in nuetral, and return when I shifted back to drive and even inched forward without pressing the gas. The noise either went away as I sped up or I just couldn't hear it. Eventually, this particular noise went away. Now, when I am stopped and in Drive (or Reverse) the transmission clicks and clacks randomly. It sounds like popcorn popping in the pan. Not pleasant. I can't "feel" it when it makes the noise though. Sometimes it will shift normally, and other times it is delayed as I mentioned above. Also, it seems to jerk the car a bit too violently when I shift to D from N. This is frustrating since this new tranny hardly has any miles or time on it... Any thoughts?
Thanks.

 

[77 cruiser]

Pull the pan @ see if you have any debris in there, sounds like something is going away. TC maybe on it's way out.

 

[ez at nova]

Wouldn't that be REALLY odd for a practically brand new TC to be going out after basically no abuse whatsoever and only a couple thousand miles?

 

[77 cruiser]

Yea, but if it was poorly made anything is possible.
Pull the pan see what's in there, & see if you have a lot of aluminum glitter.

 

[ez at nova]

Y'all will quickly realize the extent of mechanical experience I have here...but, I am obviously going to drain the pan first to avoid a huge mess if I drop it? It's a "custom" deeper and bigger pan with a rear pickup, so I don't know if the refill capacity is different than stock. Any particular fluid recommendations? I don't know what Performance Trans put in there for me.

 

[ez at nova]

Just an update to help others in the future... it ended up being the tv cable that was out of adjustment. Shifts back to normal now.

 

[2quiktocare]

The shifts may have been due to the TV adjustment, but the noise thing concerns me and wouldn't be from the adjustment. From what you are discribing sounds like a common problem with a broken flywheel. Take off the inspection cover and check for cracks in the flex plate itself. I would do that A.S.A.P. You don't want a flywheel breaking and coming apart on you. Main place they crack is around the bolt circle near the crank. Let us know what you find. thanks, Mark