What is a power steering pressure switch replacement?

Checking the power steering pressure switch is not a part of a regular maintenance check. When you take your car to a mechanic for regular maintenance, it’s not something they actively check because it involves removing a lot of parts to access.
A mechanic needs to drain the engine of liquid and remove the pressure line to access the power steering pressure switch.
This process involves a lot of technical knowledge and tools, so it’s best to leave this to a professional.

How to replace a power steering power switch

When you take your car to a mechanic, they will need to wait for your engine to cool completely, because the power steering power switch is located behind the engine.
Once the engine is cool, a mechanic will do the following:
  • Drain the engine of fluid
  • Remove the switch from the pressure line
  • Install new switch into the pressure line
  • Fill power steering system with fluid and rid the system of air
  • Verify the power steering system operates accurately

When do I need to replace the power steering pressure switch?

When the power steering pressure switch fails, it can be hard to diagnose because the symptoms mimic problems with other systems.
However, there are some signs to look out for a failure of your power steering pressure switch:
  • If the power steering assist stops working
  • If the engine stutters with a heavy steering load

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