A few vacuum leaks developed and I just put the i/c back on for the last time. Now it will either seal or I'll ditch it. I put a gasket in b/t the plates and siliconed the crap out of every darn surface. I even put a skim coat all the way around the perimeter where the plates come together. It'* very ugly now, so I will NOT be posting any more pics!

I'll let it sit over night before I try to crank it. I'll type the results tomorrow.

cant wait dude

No, you must take pictures! Please! You're just that much further from cooking rice with your engine bay. Think positively.

I finally fixed the rear fuel rail leak. The AN weld fitting got warped a little when I welded it and I've tried everything to seal it. Finally I noticed it was not round at the opening, but slightly egg-shaped. I have a steel tool that is used for top engine cleaning service. It is basically a small steel funnel to fit into different size vacuum hoses. I set the tool in the fitting and smacked the tool a couple times and voila, it set the fitting round again! Now, no more leaks.

I hope tomorrow I can say the same thing about the i/c. If not, I am going to get a 2.75" thick hunk of wood and just machine it as a spacer, no i/c for now. I have to have something under htere, the t.b. won;t clear the exhaust pipe without it.

Don't give up Jeff.
We are all watching and projecting positive thoughts.

You are making progress.

Take your time and do it right. Don't rush it.

Weel, the engine is great, the trans is not. I now see the prssure manifold has different outputs! I didn;t see it before....

The trans starts out in 4th, shifts to 1st, then 2nd, then 3rd. It doesn't matter what manual position I am in, D, 3, 2, or1, it shifts just the same.

Turboscharged400, please help!

I am thinking if removing the wires from the pressure outputs and seeing what it does. The PCM will probably go to a limp shift mode, but at least the shift solenoids will be sequenced properly (I think...)

4T80 prsssure outputs are P,R,N,D4,D3 in two positions and D4, D3 in one output where 4T65 is only D4, D3, and D2 individual outputs.

What if I just run without the TFP switch wires? Will it go into limp home mode and stick in 2nd gear?

I would be lead to believe that the PCM is commanding the wrong shift solenoids at the wrong times. Maybe the 4T80 uses different configurations of on/off for the shifts?

Sorry to skew the progress of fixing this transmission, but does the car have enough torque to get going in 4th? That would be pretty cool.

Help me figure this out: I can;t see the forest for the trees!

4T65:



4T80:



I need to configure the output to look like the trans is in D4.