True Tech Ignition PSS4T Power Steering Pressure Switch

The True Tech Ignition PSS4T is a power steering pressure switch designed to monitor hydraulic pressure levels in the power steering system and communicate with the engine control module (ECM). This critical sensor detects when the power steering system exceeds load limits during hard turns or parking maneuvers, signaling the ECM to adjust engine idle speed to compensate for the additional load on the engine.

Key Features:

• Direct replacement for OEM power steering pressure switches on select Ford, Lincoln, Mercury, and Mazda vehicles
• Manufactured by Standard Motor Products under the Tru-Tech brand for quality engine management components
• Designed to meet original equipment form, fit, and function specifications
• Features rectangular connector design for proper electrical interface
• Helps maintain proper engine idle speed during power steering operation
• Prevents engine stalling when steering system is under heavy load

This power steering pressure switch is commonly used on Ford F-Series trucks, Rangers, Mustangs, Explorers, E-Series vans, and various Lincoln and Mercury models from the 1980s through 2000s. Replacing a faulty power steering pressure switch can eliminate rough idle conditions and prevent engine stalling during low-speed maneuvers.