95 F350 power steering pump issue

[Newblue]

95 F350 2WD, 460 motor. When the engine is off and the steering wheel is turned, the fluid in the reservoir will pop the cap off and spray fluid under the hood. It works perfect when the engine is running and the steering wheel is turned. With the front jacked up I can grab the rotors and run it lock to lock and no fluid will come out. This has me puzzled.

 

[Diamondpilot]

Has to be a stuck check valve or pressure relief valve.

How much is a new pump?

Chris

 

[cockeyedMFer]

Had a similar problem on at least one of my old 88-91 F250/350 trucks. Replaced the cap and it solved the problem (although as Chris suggests it may be more involved than that)

The caps have little plastic locking lugs that flex and weaken over time.

 

[Newblue]

Hasbto be a stuck check valve or pressure relief valve.

How much is a new pump?

Chris

Looks to be $60 for a cheaper remaned unit