I have a 1995 gmc sierra 1500 5.7 4x4 with 4l60e and i have changed both solenoids, 1st i had 1st but no matter what i had to let off the throttle to go to 2nd and i had no 4th no matter what. Then 1st went out completely and when shifted into D it went straight to 2nd. After that happened reverse went out completely and acts like its in N.