P2761 Chevrolet - 2005 cargo express van 2500

Question

My cargo van has the codes: 0506, 0758, and 2761. I already cleaned the parts that i needed to clean for the 0506 code. The 0758, and the 2761 codes are annoying me, how i can fix these issues?

Could you provide images of the area(s) needed to fix, the 0506 code keeps popping up what else could i do to fix this?

Answer 1

p0758 and p2761 are related to the transmission, start by replacing the fluid 

P0506 is related to the throttle body, how is the idle on the car? normal or move up and down? 

I would remove everything and clean it up