Hydraulic groaning question - '89 100

[jdamiani]

After replacing a linking power steering hose (kit - p/n
443498892C) along with the hydraulic hose - accumulator to
pump (p/n 443698483F) on my '89 100, there is now a loud
groaning noise from the hydraulic system when the engine
starts or with any movement of the steering wheel.  It seems
to be a problem with pressure possibly not being released.
My mechanic is at a loss for the cause.  Does anyone have
any suggestions as to the cause/fix for this problem?  FYI,
the pump and steering rack were replaced less than 5K miles
ago.  Thanks for any comments,

Bruce Damiani
92 100CS Quattro
89 100 Wagon 5sp