I have a '89 Camaro originally with a 2.8l. I took the 2.8l out and replaced the block with a 3.4l. I used the same transmission, 700 r4. I lost about a quart of trans fluid when separating the engine from the tranny from the torq conv., but replaced it when the new block was in. It didn't shift right so I tried adjusting the TV cable. That didn't help. I replaced the trans filter and fluid. Still... nothing. It shifts way too late at half open throttle. Please help. I have no clue what to do.

 

Calibrate the governor. Install stronger springs in the governor as a start.
That should help unless you have the 2.8 governor that has the big rectangular holes in the outer weights.

 

dont feel so bad mine wont even shift

 

I had some of the same probs and had it rebuilt through Netgearhead www.netgearhead.com .. they have some decent prices for rebuilding if you ship it in. $570 for a complete rebuild on my 700R4

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Drew Buckenmeyer - 91 9C1

 

To adjust the TV Cable skip the book method and do this: Press the 'D' shaped lock button on the adjuster and loosen the cable setting (The black housing that the metal cable is in will move forward). Now, have someone floor the gas pedal while you check to see if the throttle plate is open all the way. Usually they are off a little and will wiggle. Do whatever you have to do to get it open solid. Now, with the pedal still floored, press the 'D' button and pull the cable casing (the black tube) back as hard as you can (putting maximum tension on the metal cable) and release the button. You now have the engine, tranny and gas pedal all in sync at WOT. Mark the cable casing so if for some reason it gets moved you can know where to put it again. The problem with the 'self adjust method' is that it bends things and puts them permanently out of whack. It is also the full TV setting, which is theoretically what the GM method does.

This is the proper method and should restore the original shift timing. Whether or not it is the best timing for this new engine is another question. Also keep in mind that any sort of engine problem that leades you to require more throttle will delay the upshift since the tranny will be at a higher throttle position.