2000 Ford Mustang Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2000 Ford Mustang and How to Fix Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2000 Ford Mustang cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
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.

How much does it cost to fix a 2000 Ford Mustang cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the throttle position sensor fails, the engine's computer tends to overcompensate with fuel, leading black exhaust coming from the tailpipe. There is a strong possibility of engine misfires, and the check engine light will come on.

Throttle position sensors can also develop "dead spots," or certain places along the throttle curve where it doesn't get a reading. When this happens, the above symptoms can occur but then stop when you further press or let off the gas pedal.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What steps should I take to diagnose the cruise control issue in my 2000 Ford Mustang?

When diagnosing the cruise control issue in your 2000 Ford Mustang, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the fuse associated with the cruise control system, as a blown fuse can often be the root of the problem. Next, inspect the wiring for any visible damage or loose connections that could disrupt functionality. Testing the cruise control switch on the steering wheel is also crucial, as a malfunctioning switch can prevent the system from engaging. Utilizing an OBD-II scanner to check for error codes can provide valuable insights into any underlying issues. If your Mustang's cruise control operates via vacuum, ensure that the vacuum lines are intact and free from leaks. Additionally, verify that the speed sensors are functioning correctly, as they play a vital role in the system's operation. If these steps do not resolve the issue, consulting a mechanic with expertise in Ford vehicles may be necessary for a thorough diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and address the cruise control problem in your Mustang.

What are the common problems that could cause the cruise control to stop working in a 2000 Ford Mustang?

When troubleshooting cruise control issues in a 2000 Ford Mustang, it's essential to consider several common problems that could be affecting its functionality. One of the primary culprits is a faulty brake pedal switch, which is designed to disengage the cruise control when the brake is applied; if this switch malfunctions, it can prevent the system from engaging. Additionally, a defective speed sensor may disrupt the communication necessary for maintaining a set speed, leading to cruise control failure. It's also wise to check for a blown fuse in the cruise control system, as this can completely halt its operation. Another potential issue is vacuum leaks within the system, which can impair functionality; inspecting and repairing any damaged vacuum lines is crucial. Furthermore, a malfunctioning cruise control module may need replacement if other fixes do not resolve the issue. Lastly, wiring problems, such as damaged or loose connections, can also lead to cruise control failure, so a thorough inspection of the wiring is recommended. By systematically addressing these common issues, you can effectively troubleshoot and potentially restore the cruise control system in your Mustang.

How urgent is it to repair the non-functioning cruise control in a 2000 Ford Mustang?

When evaluating the urgency of repairing the non-functioning cruise control in a 2000 Ford Mustang, it is essential to recognize that while immediate safety risks may not be apparent, the implications of neglecting this issue can be significant. A malfunctioning cruise control system can lead to erratic speed changes, which may compromise your control over the vehicle, especially during long drives where maintaining a steady speed is crucial. Additionally, the comfort and convenience that cruise control provides during extended trips cannot be overlooked; restoring this feature can greatly enhance your driving experience. Furthermore, from a financial perspective, addressing the repair can positively impact the resale value of your Mustang, signaling to potential buyers that the vehicle has been well-maintained. Therefore, while the repair may not be an emergency, it is advisable to prioritize it to ensure a safer, more enjoyable driving experience and to protect your investment in the vehicle.

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