2005 Ford E-350 Super Duty Cruise Control Isn't Working

Fixing Cruise Control Issues in 2005 Ford E-350 Super Duty

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Reviewed by

Bo Fader

Written by RepairPal Car Genius

Updated January 14, 2025

30% chance it's the

Sensor

25% chance it's the

Control Module

25% chance it's the

Throttle

20% chance it's

Something else

The most common reasons a 2005 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.

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RepairPal Certified shops can diagnose and repair your 2005 Ford E-350 Super Duty electronics and electrical issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

How much does it cost to fix a 2005 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.

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 steps to diagnose the non-functioning cruise control in a 2005 Ford E-350 Super Duty?

To effectively diagnose the non-functioning cruise control in your 2005 Ford E-350 Super Duty, begin with a thorough inspection of the vacuum lines connected to the intake and brake booster, as any leaks can disrupt the system's operation. Next, consult your vehicle's manual to locate the fuse box and check the fuse dedicated to the cruise control; a blown fuse can often be the culprit behind the malfunction. If these initial checks do not resolve the issue, proceed to the Self-Test Diagnostics by pressing the speed control OFF switch while turning the ignition key to the ON position without starting the engine. This diagnostic mode can reveal error codes or system malfunctions that require further attention. By following this structured approach, you can efficiently identify and address the underlying problems affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2005 Ford E-350 Super Duty?

When dealing with cruise control issues in a 2005 Ford E-350 Super Duty, it's essential to understand the common problems that may be at play. One frequent culprit 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. Another potential issue is a defective speed sensor, which is crucial for maintaining a consistent speed; if this sensor fails, the cruise control may not function correctly. Additionally, a blown fuse in the vehicle's electrical system can disrupt the cruise control operation, so checking for any blown fuses is a good first step. Vacuum leaks in the engine can also affect the cruise control's performance, making it important to inspect the vacuum lines for any signs of leakage. Lastly, a malfunctioning cruise control module may require repair or replacement to restore functionality. By systematically addressing these common problems, DIYers can effectively troubleshoot and potentially resolve cruise control issues in their Ford E-350 Super Duty.

How urgent is it to address the malfunctioning cruise control in a 2005 Ford E-350 Super Duty?

Addressing a malfunctioning cruise control system in a 2005 Ford E-350 Super Duty is of utmost importance due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can create dangerous driving conditions and increase the likelihood of accidents. Promptly repairing the cruise control not only mitigates these risks but also helps prevent further damage to the vehicle's components, which could result in more extensive and costly repairs down the line. Additionally, a functioning cruise control system enhances the overall driving experience, providing convenience and comfort during long trips. Therefore, it is crucial to prioritize the repair of any cruise control issues to ensure both safety and optimal vehicle performance.

Related 2005 Ford E-350 Super Duty Questions

See what others are asking about their Ford E-350 Super Duty. Get answers from RepairPal's community of auto experts and enthusiasts.

Help with diagnosis - power problem

2006 E-350 5.4L First symptom - cruise control would only work intermittently at highway speeds. Seemed to be associated with the brake, as it would work, but if you pushed in brake (slow traffic) and then tried to reinitiate the cruise, it wouldn't work. Over time, cruise worked less and less frequently, until now when it basically doesn't work ever. Second symptom - about 3 months later (cruise control loss is frustrating, but not a killer... ), every once in a while, the engine would lose power while accelerating while merging into traffic on highway. At least one time the engine light came on. After up to speed, it didn't have problems and engine light would go off. Most times, merging/accellerating wasn't a problem. Third symptom, and likely unrelated - about 2 weeks before the power issues started, we noticed the AC fan would not blow out the vent while accelerating to merge into traffic. The fan would be blowing, just not coming out the vent. Sometimes you fould feel it blowing out at your feet when this happened. I took it to a repair shop today, and they said issues 1 & 2 are both the same - the throttle body needs to be replaced. They said the cruise control worked at lower speeds (35-45), but not at highway speeds. I've never used the CC at those lower speeds, so I didn't notice that. My question - does that make sense? I just don't know enough about the throttle body and it's role to know if it could impact it in those ways. On item 3, they said the vacuum resevoir was losing vacuum. They also found an unidentified issue in that the AC system pressure was too high, apparently from suspected pluggage. They said they have to pull out parts of the AC to get the vacuum reservoir fixed, so it'd be easy to fix it at the same time, but that they'd have to replace the drier and tubing. Question - again, does that make sense? What are the risks if I don't fix the AC right now? Does the vacuum system deal with anything more critical than AC vent control? Financially, I don't know that I can get that fixed right now if it's not critical. Are these common problems in these vans, or is this just one of those things where everything happens at once? One other thing - he said they tested the battery and it was weak as well. Could that contribute to any of these problems? It seems that the problems are mechanical and not electrical, but I'm not sure. I know my old lumina had a cruise control problem when it had a weak battery. Thanks for any help you can provide!

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where is the short

20amp fuse blows for engine control every time ? truck starts and runs for 30sec fuse blows

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