Normal
Hissing noise from the relief valve (when actuation during
any steering maneuver)
Fluid bypassing through the poppets at full turn
System relief valve noise when required to actuate
Selected gears make a "growling" noise
Abnormal
"Squealing" noise from steering pump (if pump is belt
driven)
may indicate the belts should be checked and tightened or
replaced if necessary
"Clicking" noise made during the turn indicates some
components may be loose and shifting under the load of
the truck
Any change in the "normal" noise of the pump may indicate
that
air has gotten into the system or the fluid is low
If you need further technical assistance please call
PSS at
1-800-235-3076.
