Standard Ignition PSS42 Power Steering Pressure Switch

Power Steering Pressure Switch for Ford and Lincoln

Standard Ignition PSS42 is a power steering pressure switch built for vehicles that rely on accurate hydraulic pressure signaling. It uses a female round connector, male pin terminals, and a 3-terminal layout to support dependable electrical switching in the steering system.

Compatible With Ford Expedition, Focus, Transit Connect, F-150, F-250 Super Duty, F-350 Super Duty, Mustang, Taurus, Freestar, Escort, F-150 Heritage, and Lincoln Navigator, Mark LT applications across the listed model years.

Key Features

• Power steering pressure switch for steering system signal control
• Female round connector with 3 male pin terminals
• Copper alloy conductors for strong electrical conductivity and reduced resistive loss
• 100% tested for mechanical and electrical switching performance
• Built with robust materials for service-focused repair work
• Standard Ignition PSS42 direct replacement reference

Detailed Description

The Standard Ignition PSS42 power steering pressure switch is engineered for vehicles that need a reliable pressure signal from the steering hydraulic circuit. It is commonly selected for Ford and Lincoln repairs where the switch must communicate steering load changes to the vehicle’s control system. This part number, PSS42, is also a useful cross-reference when matching an OE-style replacement for the same application.

This part cross-references 1S6840 and 3F1Z3K215A for the same application. It is a practical replacement for Ford Expedition, Ford F-150, Ford Taurus, and Lincoln Navigator service jobs where connector style and terminal layout must match the original component.

What It Helps Address

• Intermittent or inaccurate power steering pressure signal
• Warning lights related to steering system input
• Idle quality changes when steering load increases
• Electrical faults caused by worn switch contacts or connector issues
• Loss of proper steering pressure feedback to the vehicle system

Installation Notes and Tips

Verify connector shape, terminal count, and terminal gender before installation. This switch uses a round female connector with three male pin terminals, so matching the original configuration is important for proper fitment. Confirm the vehicle application by year and model, especially on Ford Freestar 2006 with round connector notes and Ford Escort or Mercury Sable applications where connector details matter.

Fits 2003-2012 Ford Expedition, N/A; Fits 2004-2012 Ford Focus, N/A; Fits 2010-2012 Ford Transit Connect, N/A; Fits 2003-2012 Lincoln Navigator, N/A; Fits 2003-2011 Ford F-150, N/A; Fits 2003-2009 Ford F-250 Super Duty, N/A; Fits 2003-2009 Ford F-350 Super Duty, N/A; Fits 2006-2008 Lincoln Mark LT, N/A; Fits 2007 Ford Freestar, N/A; Fits 2002-2007 Ford Taurus, N/A; Fits 2006 Ford Freestar, N/A, w/ Round Connector; Fits 2004-2005 Ford Mustang, N/A; Fits 2004 Ford F-150 Heritage, N/A; Fits 2002-2004 Mercury Sable, N/A; Fits 1997-2003 Ford Escort, N/A; Fits 1998 Ford Contour, N/A, w/ Round Connector; Switch.

Quality Assurance

Standard Ignition builds this switch with copper alloy conductors and tests each unit for mechanical and electrical switching performance. The design reflects long-term development focused on technician requirements and service reliability.