P0751 gm 06 hummer h2

Question

How to replace it? Can i do it at home ?

Answer 1

P0751  1-2 shift solenoid (SS) valve performance -

This code condition can possibly be a internal failure or just the 1-2 shift solenoid. This can also just be a intermittent condition. clear the code if P0751 occurs and there is no 1st gear and no 4th gear a internal mechanical condition needs to be inspected for this.