Reinstall the sensors. If you don't install cats, just do the non-fouler trick on the rear sensor.

 

Ive been busy but I finally got my solenoid kit from cascade transmission. Im gonna put it in this weekend lets hope this is a fix. Cross your fingers haha!

 

So for anyone who wants to know how it turned out replaced all the solenoids and replaced my 3-4 accumulator spring as the one in my transmission was snapped in half. Now it shifts into 3rd and od just fine and my trucks even feels snappier now. However the only thing it still does that it was doing before the solenoid service is when its in OD and im doing 65-70 mph the rpms when it worked right was around 2000-2100 and now its running around 2400 rpm doing about 65.

 

I suspect TCC isn't engaging. That would drop it around 200 RPM or so......

 

what would cause it to not engage?

 

Bad solenoid, a fault in the circuit, PCM being obstinate.

PCM *should* set a code for that.....

 

I replaced the tic and od solenoid. its parked now but I did drive for at least 40 and it was running and shifting pretty good other then the little higher rpms in od. No CEL light came on either.

 

Take it for another drive, and pay attention to the tach. (or, have someone else drive, while you pay attention to the tach.....) You should be able to feel each gear when it shifts, tcc engage will only drop like 200 RPM, and I *think* comes in after 3rd gear, but, before O/D. (O/D is a pretty dramatic drop in RPM......) A nice deserted STRAIGHT stretch of road is best for that test.

 

I kinda did do that and I took a video of the rpms and mph on my phone. I don't know if I have share it on here though qua its on my phone.

 

Post it up. I *think* you can still use photobucket for that, or a handful of other sites.....