i have a 87 camaro v6 with a 700R4 that was rebuilt within the last 20k miles. anyway, everything was fine until i put new injectors in the car, then i had to adjust the tranny cable for some reason. so now, right when i start the car, and get it into 3rd or 4th and go up a hill, (even a slight incline), the car downshifts and upshifts repeatedly. i cant tell if its downshifting or if its the torque converter but evenso, i know its not working right.
PLEASE HELP ME GUYS! I DONT KNOW WHAT TO DO TO FIX IT.

 

There's nothing wrong with it.

That's your TCC - Torque convertor clutch. You think you trans is upshifting/downshifting, but it's not. You're feeling the TCC going in and out of lockup.

To verify this, go for a cruise on a flat road at around 55 mph. Put your left foot lightly on the brake pedal- not enough to slow the car down, but enough to put the brake lights on. You'll notice the RPM's go up a few hundred. The TCC disengages when you apply the brakes.

After doing that, find that hill you were talking about, and start driving up it. When the car starts "downshifting/upshifting", put your left foot lightly on the brake. It'll stop.

You can buy units that delay TCC lockup, but it's an otherwise normal operation. With the combination of the fresh rebuild, new injectors, and (hopefully) proper setting of your TV cable, your trans and engine are working normally again.

For more information, click <a href="search.php?s="><img src="images/top_search.gif" alt="Search" border="0"></a> and do a search on "TCC".

 

Damnit, you beat me to it...I saw this post and freakin almost fell out of my seat clicking into it as quick as I possibly could. I love getting the first responses in.