Rattling PS pump
 

Hello!
Regarding my '69 428CJ Mach1:
I have a problem with rattling sound from the power steering pump and loss of power steering assist when it has warmed up.
Have replaced all lines and have replaced
the pump twice (rebuilt by Ford) but the problem persists. Any suggestions? I have not
rebuilt the power cylinder or control valve yet. The system is refilled with type F
auto fluid as specified in the workshop manual.
Regards,
Soren

I have had the same problem, the best solution was to give the power steering components the float test (throw it in a lake, if it floats it is still good)
If you want to keep the power steering, you may want to try to shield the lines from heat using header wrap or thermal tape.

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67 Fastback - Arctic White Pearl paint
351W ,Trick Flow Aluminum Heads, Edelbrock TorkerII, Comp. Cam, Performance Automatic C-4 Trans, 3.55 gears, Front Disc Brakes, 1-1/8" Fr. 3/4" rear sway bars.

My 351W Fastback
http://www.mustangworks.com/mustangs...1245-slot2.jpg