# Electric Power Steering Assist Failure 1999 Ford Crown Victoria > ClearTheCode — Facing electric power steering assist failure in your 1999 Ford Crown Victoria? Learn common symptoms, causes, and diagnostic steps to restore smooth, safe steering and get your classic back on track. Source: https://clearthecode.com/articles/power-steering-electric-assist-failure-ford-crown-victoria-1999 Author: ClearTheCode # Electric Power Steering Assist Failure 1999 Ford Crown Victoria Facing an electric power steering assist failure in your 1999 Ford Crown Victoria can transform a smooth drive into a strenuous workout. When the electric power steering (EPS) system loses its assist, the steering wheel becomes incredibly difficult to turn, especially at low speeds or during parking maneuvers. This isn't just an inconvenience; it's a significant safety concern that demands immediate attention. Understanding the specific symptoms, causes, and diagnostic steps can help you pinpoint the problem and get your classic Crown Vic steering effortlessly again. ## What drivers notice on this 1999 Ford Crown Victoria The most immediate and noticeable symptom of an electric power steering assist failure is a dramatic increase in the effort required to turn the steering wheel. This issue typically manifests as: * **Heavy steering feel:** The steering wheel feels unusually stiff and resistant, requiring significant physical effort to maneuver, similar to driving a vehicle without any power steering. This is particularly noticeable during tight turns or when navigating parking lots. * **Difficulty at low speeds:** The problem is often most pronounced when parking, making U-turns, or driving slowly, where power assist is most critical. At higher speeds, the momentum can sometimes mask the issue, but the lack of assist remains a safety hazard. * **Intermittent loss of assist:** The power steering might work sometimes and fail at others, potentially cutting out unexpectedly while driving. This intermittent behavior can be particularly alarming and difficult to diagnose. * **Steering warning light:** An illuminated power steering or general warning light on the dashboard may accompany the loss of assist, indicating a fault within the EPS system. * **Unusual noises:** While less common for electric systems than hydraulic, grinding, whirring, or clicking sounds from the steering column area or under the hood could indicate a failing EPS motor, module, or a mechanical component within the steering rack. * **Vibrations through the steering wheel:** In some cases, a failing EPS motor or sensor might cause unusual vibrations that can be felt through the steering wheel, especially when turning. * **Steering wheel not returning to center:** A lack of proper assist can sometimes make the steering wheel feel sluggish or prevent it from returning to the center position naturally after a turn. ## At a glance: difficulty, repair cost, and diagnostic workflow - **Difficulty Rating:** 8/10 — Moderate to advanced - **Common Symptoms:** Dashboard warning lights: In addition to a dedicated power steering warning light, a general - **Estimated Repair Cost:** $200–$1,800 (parts + typical shop labor) - **OEM Tooling Required:** Standard OBD-II scanner and hand tools **Diagnostic workflow:** 1. Confirm the symptom on your vehicle. 2. Scan for stored or pending codes with an OBD-II tool. 3. Inspect the most common causes in this guide (visual checks first). 4. Run verification tests before replacing parts. 5. Repair, clear codes, and verify on a test drive. ## What is different on this year and model It's important to note a critical distinction: most 1999 Ford Crown Victoria models were equipped with traditional hydraulic power steering systems, not electric. A factory-installed electric power steering assist system on a 1999 Crown Victoria would be highly unusual for an OEM setup, often indicating an aftermarket modification, a custom build, or a very specific, rare export variant. This distinction is crucial for diagnosis, as the components, failure modes, and repair procedures are entirely different. **Hydraulic vs. Electric Power Steering:** * **Hydraulic Systems:** Rely on a belt-driven pump, power steering fluid, hoses, and a steering rack to provide assist. Problems typically involve fluid leaks, pump failure, or air in the system. * **Electric Systems:** Utilize an electric motor, a control module (ECU), and various sensors (torque, steering angle) to provide assist. There's no fluid, pump, or hoses involved. Failures are usually electrical or electronic in nature. Before proceeding with electric power steering diagnostics, it is paramount to **verify that your 1999 Ford Crown Victoria genuinely has an electric power steering system.** If you suspect an aftermarket conversion, consult documentation from the installer or visually inspect the steering rack for an electric motor assembly rather than a hydraulic pump and fluid reservoir. If your vehicle has a hydraulic system, the troubleshooting steps outlined here for EPS will not apply, and you should instead focus on hydraulic system components. For this specific article, we assume your 1999 Crown Victoria is indeed equipped with an electric power steering system, focusing on its unique characteristics and troubleshooting. ## Symptoms and warning signs Beyond the immediate difficulty in steering, there are other signs that your 1999 Ford Crown Victoria's electric power steering system may be failing: * **Dashboard warning lights:** In addition to a dedicated power steering warning light, a general ## Related pages - All repair guides - [Browse vehicles](/vehicles) --- This guide is not a substitute for OEM service procedures; use a qualified technician for safety-critical repairs. ## Frequently asked questions ### How urgent is this problem? If symptoms are worsening or safety systems are affected, diagnose soon; minor issues can often wait for a scheduled service visit. ### Can I drive with this issue? Short trips may be acceptable for some faults, but stop driving if you notice overheating, loss of braking, steering problems, or strong fuel smells. ### Do I need a dealer scan tool? A basic OBD-II scanner helps confirm codes; some steps still need visual checks and meter tests described above. ## Explore related guides on ClearTheCode - [Browse OBD-II codes](/codes) - All repair guides