Well like tons of others I have the lovely shake from the trans everytime the lockup kicks in. The trans. was said to be rebuilt and it does have some numbers written on it like a trans. shop would do. It only does this in lock-up not any other time so I have learned to deal with it for now. My question is if the Sonnax Sure Cure Kit would maybe fix the problem? Has anyone used this kit? I need to know if the trans has to come out for this kit, or can I drop the pan and pull the valve body to do this? What about a filter change? I have seen filters plug from all stuff from a fresh build (although that was from someonewho didn't know what they were doing) Last thing is I was thinking about the solenoid like these listed below?

http://www.partsamerica.com/ProductL...ssion+Solenoid

90% of the shudder problems in TC lockup are ignition related. That'* the time when they would be most apparent. Very carefully go through your plugs, wires, and coils. Look for shorting wires, intermittent opens, fouled plugs, and check your coils for the proper resistance in Techinfo.

TCC shudder as we normally discuss it is an issue primarily with the 4T65, not the 4T60. As the valve body wears (with regards to the TCC solonoid seat) the TCC in a 4T60 will simply fail to engage, not shudder. This typically happens at higher trans temps, and can sometimes be temporarily cured by killing the ignition (in neutral coasting), and restarting.

Your problem sounds like ignition issues to me.

I only have one thing left to check on the ignition side which is the coil packs. It has done it since I bought it 2 months ago, and have since replaced the plugs and wires. I thought that if it was the motor my tach would be bouncing when it does this, or the vac/boost guage would bounce too. When the lockup kicks in both needles stay perfectly steady, but the car shudders pretty good especially when you give it some throttle with it kicked in. I am swapping the coilpacks today one by one with some boneyard ones to see what happens. I will let you know what I find. Thanks for the response.

Please Test yours before you start shotgunning parts

Will I have to apologize for not exactly agreeing with you on the ignition. Although it was not ignition that was causing the problem with my trans. and a sputtering miss at takeoff. The problem was exactly what I figured was wrong. I had picked up some injectors while at the boneyard with Eric knowing that I had one injector that just didn't fit the equation. I had a red injector and the rest of them were white. That led me to believe that this was my sputtering miss on takeoff. I swapped the nice boneyard one with the red one (which was totally different from the rest!) and presto I now have a car that runs like a dream. No more sputtering miss, and no more shake in lock-up. All I can say is YAY Thanks for helping me out with what you could.

That doesn't surprise me, but normally we rarely see injector issues on this Forum. In fact, I don't recall a failed injectore ever off the top of my head.

There'* alot of apparent trans issues here that end up being a misfire condition. Yours just happened to be an injector rather than ignition. Glad you got it fixed.