steering

Power Steering Fluid Flush

for 2017 Ford F-150 3.5L V6 EcoBoost · RWD

Editorial review:Chris Hackleman — Master Technician · 20+ years

Difficulty

Easy

Time

—

Tools

Steps

✓Expert-verified. Personally reviewed and approved by OLP's master technicians (Chris Hackleman — 20+ years each). Always follow the vehicle's factory service information and torque specs.

This procedure cannot be performed as the 2015-2020 Ford F-150 with 3.5L EcoBoost engine uses Electric Power Assisted Steering (EPAS) and does not contain power steering fluid.

Warnings

ℹ️The 2015-2020 Ford F-150 with 3.5L EcoBoost engine is equipped with Electric Power Assisted Steering (EPAS). This system does not use hydraulic power steering fluid and therefore cannot have a power steering fluid flush performed.

⚠If you are experiencing power steering issues, diagnose the electric power steering system using appropriate diagnostic tools. Check for trouble codes related to the steering angle sensor, torque sensor, or EPAS control module.

Preparation

Verify your vehicle is equipped with EPAS by checking for the absence of a power steering fluid reservoir under the hood
If power steering concerns exist, connect a diagnostic scan tool to check for EPAS-related fault codes

Procedure

1
Confirm Electric Power Steering System
Open the hood and verify there is no power steering fluid reservoir present. The 3.5L EcoBoost F-150 uses an electric motor mounted on the steering column to provide steering assist, eliminating the need for hydraulic fluid, pump, hoses, and reservoir.

Verification

No power steering fluid flush is required or possible on this vehicle
If steering assist issues are present, verify battery voltage is above 12.4V as EPAS performance is voltage-dependent
Check for diagnostic trouble codes in the power steering control module if steering concerns exist