Hi I just bought a 2003 blazer bought it with the trans not wanting to shift unless letting of the throttle and it was throwing a p0752 code replaced the solenoid and it didn’t change anything the bought a new valve body with all new sensors and still hasn’t change any clue what could be causing this

 

Welcome to the Blazer Forum. I don't know enough to help you diagnose the problem with your truck, but hopefully someone here can.

FYI, you'll be much more likely to get a knowledgeable response if you post in the correct tech forum for your issue. The section you're looking for is the Engine & Transmission section.

The new members area is generally for greetings and introductions.

 

Welcome to the Blazer Forum.

Thanks ElBeautor for pointing this out.
Saves me from moving the thread.