The pressure switch of the power steering maintains communication with the engine's computing system by relaying information regarding the fluid in the car's power steering pressure system. As a result, the computing system adjusts the operations of the engine as needed. Generally, the pressure switch features two electrical sensors plus a diaphragm, which are exposed to heat every day. Over time, the heat build-up can result in the failure of the pressure switch. Here are a number of common symptoms for any motorist or car owner to look for if they suspect a worsening power steering pressure switch.

The engine slows down

Whenever the power steering pressure switch begins to deteriorate, the engine's computing system will no longer be able to satisfy the operational demands of the power steering. As a result, the engine is bound to slow down every time you take a corner, or whenever you're driving at reduced speeds.

The engine stalls 

In addition to the slowing down, your car's engine may also start to stall whenever the wheel gets turned. This is also resulting from the failure of the computing system to satisfy the varying demands placed by the power steering system. The computer will be unable to recognize the request for power, therefore it's unable to compensate and causes the car's engine to stall.

The engine speeds up and slows down

As the engine's computer attempts to maintain the demands of the power steering, car owners may notice the engine starting to slow down and then overcompensating by suddenly increasing the speed. This may present a risky situation because if your car speeds up suddenly in traffic, it may cause a mishap resulting in injuries and property loss. Further, you may not be able to control the car when this happens. Have a mechanic check your car right away.

Examine engine light

Once the engine's computer diagnoses the power steering pressure switch is malfunctioning, it will activate the check engine light on your car's dashboard. Once you see this light, take your car to a mechanic for inspection as soon as possible. The activation of the check engine light may mean a lot of different things, more so problems with the power steering pressure switch.

Immediately you take notice of your engine slowing down, stalling or suddenly speeding up then reducing speed, it's time to call in a mechanic to diagnose and repair your power steering pressure switch.