power steering is out

[curtis berghuis]

Hi i have a 1970 mustang with a 351 cleveland and i'm trying to find some help my power steering line blew so i replaced it and filled it with power steering fluid.It worked for a day then the next day it was not working at all.I just read that i was sapposed to use atf type-f, so i changed fluid but still nothing the control valve was already rebuilt a year ago and theres no leaks that i can see do i just need to rebuild the pump or could something else be wrong. thanks for your time.

 

[Midlife]

Did you drain all of the PS fluid before refilling it with Type F?

 

[Teebone]

could be air in the system

 

[crustycurmudgeon]

Would using power steering fluid instead of Type F really cause such a complete failure? My feeling is maybe it's not optimal, but power steering fluid should work.

 

[MD69Boss]

could be air in the system

:wstu That would be my first guess too...

 

[jims6t6]

Check your pump.