I got and ECU reading of solenoid valve and knock sensor. Should I get the solenoid problem fixed. I was told this should get rid of the knock reading. Also, how much is this gonna cost me. I don't wanna get ripped off.

 

Which Solenoid valve?

 

I believe it was the 4th. My car wont go into 4th and it takes a while (revs high) to get into second

 

Ahhh so you have a transmission problem. You can replace the Solenoids, you just have to figure out which one is the culprit.

 

i was told that when they are in there, they might as well change all of them ... in case the others were worn