Im replacing the two shift solenoids in my 99 Eldorado. I managed to bust the **** out of thee old ones getting them out and then saw that there is a clip that hold them in. I mangled the **** out of those also. So, my question is: It looks like I have to drop the valve body in order to clip the new solenoids into place??
I dont see any other way to do it. is dropping the valve body gonna be a mess or is it pretty straight forward that I can drop it and get the new clip in and just bolt it back up into place? Any help is appreciated on this...Thanks

 

Yes, you have to remove valve body to replace solenoids. You will want to have valve body gasket. There are a few check ***** in the valve body. Vasaline can be used to hold them in place during reassembly. the 4T80e really didn't change much so I would trying to find an instruction sheet for check ball and bolt locations. There was a TSB related to replacing solenoids on earlier models may have information you might need. There also seems to be some videos to watch. Good luck

 

Ok thanks. I did look for some youtube videos but didnt see any for the 4T80. Some for others but they were able to access the clips without valve body removal.

 

Well, I gotta take one and take it in to a trans shop tommorrow. It keeps putting out the PO758 code and I did everything I could. Took it apart twice just to recheck my work. A guy at the shop said that he's seen bad GM solenoids brand new. I dont know if thats true but I guess I'll see what this dam problem is.....

 

Did you have to remove the whole transmission from the car?