Will get done ASAP with weather's permission unless I can find a garage, it is going to be single digits all week.

 

That's WAY to cold to be workin' outside........ I had the oil change guys change my license plate, because I don't wanna be out there.

 

Replace OD solenoid pack and cleaned valve body, also noticed my throttle valve adjustment screw on the valve body was backed out. Put back in and filled to level, no still no OD. Any other ideas?

 

And the PCM isn't setting any codes??

 

It's hit-and-miss with throwing codes. Today I got a P0783 and a P0740 which is 3-4 shift and tcc circuit. Sometimes I just get the 783 but most of the time no codes are set. Like I said though, when it wants to shift, it shifts great.

 

I would begin to suspect a problem with the PCM. Think I would start by pulling the connectors, and cleaning them all out, and making sure they were tight. Everything else has been gone over......

 

PCM has been replaced 2 years ago, but it's always a possibility. Will check connections. Do you know where I can get a schematic of which wire to check for command of OD solenoid coming from pcm?