Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Symptoms of a Bad or Failing Power Steering Pressure Switch

Symptoms of a Bad or Failing Power Steering Pressure Switch

power steering pressure switch

The power steering pressure switch communicates with the computer by sending information about the fluid in the power steering pressure system of the vehicle. From there, the computer adjusts the engine’s operation as needed. The switch has two electrical sensors, as well as a diaphragm, which are subjected to heat on a daily basis. Over time, this heat can cause the pressure switch to fail. The following are a few symptoms to look for if you suspect a failing power steering pressure switch:

1. Engine slowing down

As soon as the power steering pressure switch starts to go bad, the computer will not be able to keep up with the demand of the power steering system and make proper adjustments. One symptom of this is the engine will slow down when you turn a corner, or while you are driving at low speeds.

2. Engine stalling

Along with slowing down, the engine may stall when the wheel is turned. Again, this is due to the computer not being able to meet the changing demands of the power steering system, causing the engine idle to drop too low. The engine’s computer will not recognize the demand for power, so it cannot compensate, causing the engine to stall. If this happens to you, contact the professionals at YourMechanic to have your power steering pressure switch diagnosed. A vehicle should not be driven if it is stalling.

3. Speeding up and slowing down

As the computer tries to keep up with the demand of the power steering system, you may notice the engine slows down then overcompensates by speeding up with an erratic idle. This can be a dangerous situation because if it speeds up unexpectedly in traffic, it could cause an accident or cause you to lose control of the vehicle.

4. Check Engine Light comes on

If the computer recognizes the pressure switch is not working correctly, it will trigger the Check Engine Light on your dashboard. Once this light is illuminated, it is important to have your vehicle inspected by a mechanic as soon as possible. The Check Engine Light can mean many different things, so it could be a problem with your power steering pressure switch, or it could be a combination of issues.

As soon as you notice your engine slows down, stalls, or speeds up then slows down, have your power steering pressure switch inspected and replaced. In addition, anytime your Check Engine Light is illuminated your vehicle should be inspected by a mechanic. YourMechanic makes getting repairs to your power steering pressure switch by coming to your home or office to diagnose or fix issues. You can book a service online 24/7. YourMechanic’s qualified technicians are also available for any questions that may arise.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...


Related questions

Q: Have had multiple power steering replacements, reservoir, pump, rack, tie ride ends, and belt.

Hi there. Check the power steering and make sure that the pump is working properly as you turn the steering wheel. Listen for any noises that may occur as you turn the steering wheel from lock to lock (left to...

Q: Putting pitman arm onthe power steering gearbox

Hello there, the power steering gearbox and pitman arm are critical steering components on your 2001 GMC Yukon. The pitman arm must be torqued properly so it sits on the splines properly preventing it from loosening over time. A regular...

Q: Power steering wheel making noise

The first thing to check is the power steering fluid with the engine off. Add fluid if it is low and recheck for noise. If the fluid is very dark colored, a flush may be needed. If the fluid was...