1999 4r100 shifting issues after shift solenoid replacement

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Anitomical

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Joined
Sep 11, 2022
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Location
Pennsylvania
I've been having troubles with the trans for a little while now, before it would only shift from first to second and if you're completely off the gas it'd shift to 4th. I had just replaced the solenoid block today along with the filter and as soon as i turned it on (which took a very long time for no reason) the O/D was flashing so i put my code reader on it and it said p0743 and p0755. Cleared the codes turned the truck off for a couple minutes turned it back on and took it down the road and the shifting was almost nonexistent. It was in second, let off the gas and got back on it and magically it was in 3rd and stayed there even if i went WOT to downshift and wouldnt go above 2,500. Turned around and went into drive and it was still in 3rd... 2,500 barely accelerating so i put it in first went into first put it in second went into second, put it in drive shifted to 3rd and stayed there except when i let off. I really don't know what to do with the damn thing atm im just confused and a little pissed at the thing. Literally any suggestions would be so appreciated
 
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