Ford Probe Speedometer Isn't Working

Common Causes of a Non-Functional Speedometer in Your Ford Probe and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
35% chance it's the
Vehicle Speed Sensor (VSS)
0%
28% chance it's the
Speedometer
0%
23% chance it's the
Electrical Issue
0%
14% chance it's
Something else
The most common reasons a Ford Probe speedometer isn't working are the vehicle speed sensor (VSS), a faulty speedometer, or an electrical issue.
  • Vehicle Speed Sensor (VSS): A faulty vehicle speed sensor can result in inaccurate speed readings and erratic transmission shifting.
  • Speedometer: A faulty speed sensor or a broken connection in the speedometer circuit can result in inaccurate speed readings.
  • Electrical Issue: A blown fuse or a short circuit in the wiring can cause various electrical issues in the vehicle's systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

Troubleshooting a Non-Functional Speedometer in a Ford Probe

When troubleshooting a non-functional speedometer in your Ford Probe, it's crucial to follow a structured diagnostic approach to identify and resolve the issue effectively. Begin by checking the Vehicle Speed Sensor (VSS), as it plays a vital role in transmitting speed data to the speedometer. If the VSS is found to be faulty, replacing it is often a straightforward fix that can restore functionality. If the VSS is functioning correctly, the next step is to inspect the speedometer itself for any signs of wear or damage, such as worn gears or wiring issues, which could impede its operation. Should the speedometer appear to be in good condition, turn your focus to the vehicle's electrical system; look for corroded wiring or blown fuses that may be affecting the speedometer's performance. Lastly, consider other potential causes, such as broken speedometer gears or bent axles, which may require more extensive repairs. By methodically assessing each component, you can effectively diagnose the problem and take the necessary steps to restore your speedometer's functionality.

What to Check When the Speedometer Isn't Working in a Ford Probe?

When your Ford Probe's speedometer stops working, it's essential to systematically check several key components to identify the root cause. Start with the Vehicle Speed Sensor (VSS), as a malfunction here is one of the most frequent culprits. The VSS plays a critical role in measuring the vehicle's speed by interacting with the transmission and driveshaft. If the VSS is faulty, it may need replacement. Next, consider the speedometer itself; it could be defective and require repair or replacement. Additionally, inspect the electrical connections and wiring, as electrical issues can disrupt the speedometer's functionality. If your check engine light is illuminated, it may indicate a problem with the speed sensor, often accompanied by a trouble code like P0500, which points to a VSS circuit malfunction. By thoroughly examining these components, you can effectively diagnose and resolve the speedometer issue in your Ford Probe, making it a manageable DIY project.

Why is the Speedometer Not Working in a Ford Probe?

When the speedometer in your Ford Probe stops functioning, it’s crucial to address the issue promptly, as neglecting it can lead to safety risks and potential damage to your vehicle. Common culprits include a faulty Vehicle Speed Sensor (VSS), which is often the primary reason for a non-working speedometer. Additionally, issues such as a malfunctioning speedometer itself, broken speedometer gears, corroded wiring, blown fuses, or problems within the instrument cluster can also contribute to this problem. To effectively diagnose the issue, you can test the speed sensor by checking if the cruise control operates correctly; if it does, the speedometer may be at fault. Ignoring these symptoms not only compromises your ability to monitor your speed but can also lead to more significant mechanical failures, making it essential to investigate and resolve the problem as soon as possible.

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