What to know about the Power Steering Pump Pulley:
Like many other systems on your vehicle, your power steering works on pressurized fluid, and the power for pressurizing that fluid is delivered by the engine. Depending on the year, make and model, your car may have a single drive belt, or two belts. In both circumstances, a belt will work the power steering pump via a pulley. The belt goes around the pulley, and spins it while the engine operates. When the engine is off, the pulley remains still and the pump does not work.
As with any other pulley in the engine, the power steering pump pulley depend on a bearing to ensure that it functions appropriately. Heat and friction will wear the bearings out and they will eventually need to be changed. There are other instances that could cause problems with the power steering pump pulley, including serious auto accidents that bend or even break the pulley.
Facts to Note:
Power steering pump pulley and belt operation should be checked at fixed maintenance (oil changes).
Bearing failure is the most common power steering pump pulley problem.
A broken belt can cause your power steering system to breakdown.
The belt can brake if bearings seize.
How to Fix:
The hood is opened and the serpentine belt is detached
The power steering pulley is detached with a pulley puller
The new power steering pulley is fitted using a pulley installer
The serpentine belt is installed and pulley alignment is checked
The engine is run and the power steering system operation is tested
Without an operational power steering pump pulley, your whole power steering system will be inoperable. The most common cause of problems here is wear
and tear of the pulley bearing. The pulley will need to be change, the old bearing pulled out, and a new bearing fixed. Because of the importance of this system, we vouch for having any power steering system problems be diagnosed by one of your expert mechanics.
Common symptoms indicating you may need to change the Power Steering Pump Pulley:
Whining or grinding sound while engine is running
Power steering pump pulley is locked (won’t turn)
Power steering or serpentine belt is broken (possibly a sign of bearing failure)
Importance of this service:
SEE ALSO:HOW TO REPLACE POWER STEERING PUMP
Some power steering systems aren’t as critical as others, but this one plays a significant role in the drivability of your vehicle. If you notice any of the symptoms above, or suspect there’s a problem with the pulley or the bearing, you should have the system inspected straightaway.