maxs

i double checked my connections ...all good im thinking itsa shift solenoid the one for 3-4 gears it shifts super smooth from first into second but thats where it stops the engine just winds at second its not up shifting to the next gear (while in the drive position ) i just got back from the autoparts store with my filter and gasket the solenoid will have to wait till after 4:00 today when they get it in...hopefully this will fix it ...i hooked my pc to the dataport and got po700 and po757 so the first usually gets thrown when something like the solenoid (po757) goes out anyway so changing this should fix it ...hopefully

donbrew

It says here it is the 2-3 solenoid. https://www.engine-codes.com/p0757_chevrolet.html

I would avoid the extra work and replace both, since it may be related to "nasty" ATF or metal flakes.

maxs

yeah i am i should have said that in the post ... i do that with breaks and bearings also if front goes i also replace the back ect... but i should have stated that in the post...i cant wait to get this baby driving ....