02 f150 supercrew 5.4
I was pulling into a parking space and my power steering suddenly stop working. When i stoped tried truning the wheel and could barly move it. After backing out and picking up a little speed it started working better, but at low speeds 0-5 mph extremely hard to turn after that works good. Its not making any noises and fluid level is still full. Is the pump bad? any ideas?

 

Well today the wife drove it to work and around town this evening and on her way home it started working with no problems. i just tested it it and turns easily sitting in park. So now im totally confused and i do not have good enough luck that this won't happen agian! Any suggestions?

 

something clogged up the passes? might want to check the resevoir for debris

mine does the same thing when it blows. but you can tell its blow cause is spews fluid everywhere.