2002 Ford E-350 Super Duty Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2002 Ford E-350 Super Duty and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
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25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2002 Ford E-350 Super Duty 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 2002 Ford E-350 Super Duty 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.

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.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What are the initial steps to diagnose the non-functioning cruise control in a 2002 Ford E-350 Super Duty?

When diagnosing a non-functioning cruise control in a 2002 Ford E-350 Super Duty, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex issues. Begin by starting the vehicle and inspecting the vacuum lines connected to the intake and brake booster, as a vacuum leak can significantly impact cruise control functionality. Next, perform a self-test diagnostic by pressing the speed control OFF switch while starting the engine; this can reveal any underlying problems within the cruise control system. Additionally, check for blown fuses, as they are a common culprit for electrical failures. Ensure that the cruise control buttons on the steering wheel are operational and verify that the brake lights are functioning correctly, since a malfunctioning brake light switch can disrupt the cruise control system. Finally, look for any visible signs of wear or damage on the cruise control components. If these preliminary steps do not yield results, further diagnostics may be required to accurately identify the issue. This methodical approach not only saves time but also enhances the likelihood of a successful DIY repair.

What are the common problems that could cause the cruise control to stop working in a 2002 Ford E-350 Super Duty?

When dealing with a malfunctioning cruise control system in a 2002 Ford E-350 Super Duty, it's essential to understand the common problems that could be at play. One frequent issue is the failure of the control module, sensors, or switches, which are integral to the system's operation. Additionally, throttle actuation problems can disrupt the cruise control functionality, making it crucial to inspect the throttle body for any malfunctions. Another area to check is the vacuum actuator; if it is not functioning correctly or if there are damaged vacuum hoses, the cruise control may fail to engage. Furthermore, ensure that the cable connecting the actuator to other components is intact, as any damage here can lead to issues. It's also wise to examine the vehicle's fuses, brake pedal position sensors, and the PRNDL/shifter position switch, as these components can contribute to cruise control failures. Lastly, a vacuum leak in the intake or brake booster can prevent the system from working properly. For a thorough diagnosis, consulting a repair manual specific to your model can provide valuable guidance in identifying and resolving these issues effectively.

How urgent is it to address the non-functioning cruise control in a 2002 Ford E-350 Super Duty?

When it comes to the non-functioning cruise control in a 2002 Ford E-350 Super Duty, understanding the urgency of the situation is crucial for any DIY enthusiast. While the immediate safety risks may not be apparent, neglecting this issue can lead to a less enjoyable driving experience, particularly on long trips where maintaining a constant speed is beneficial. A malfunctioning cruise control system can cause driver fatigue as constant manual speed adjustments become necessary, which can detract from overall comfort and convenience. Moreover, addressing the problem sooner rather than later can prevent further complications, such as potential damage to the vehicle's electrical system or other related components. Therefore, while it may not seem like an emergency, taking prompt action to diagnose and repair the cruise control system is advisable to ensure a smoother, safer driving experience in your Ford E-350 Super Duty.

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