Power Steering Pump Diagnosis. Buick Park Avenue 1999

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1999 🢒 Park Avenue 🢒 Steering 🢒 Power Steering System 🢒 Power Steering Pump Diagnosis

Condition

Cause

Groaning Or Growling Noise In Steering Pump

•	Grounded power steering lines

•	A scored pressure plate

•	A scored thrust plate

•	A scored rotor

•	A worn cam ring

•	Low pressure relief reservoir cap

•	Restrictions in the fluid lines (high back pressure)

•	Air ingestion in the return line

•	A damaged flow control valve

•	Low fluid level

•	Loose pump mounting bolts

Rattle Noise In Steering Pump

•	A damaged pump rotor

•	Damaged pump vanes

•	Damaged pump bearings

Swishing In Steering Pump

Inspect the flow control valve for damage.

Whining Noise In Steering Pump

•	A scored pump shaft bearing

•	A scored pressure plate

•	A scored thrust plate

•	A damaged cam ring

•	A damaged cam rotor

•	Damaged cam vanes