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.
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.
When faced with a non-functional cruise control in a 2009 Ford E-350 Super Duty, it's crucial to adopt a systematic diagnostic approach. Begin by checking the fuse associated with the cruise control system, as a blown fuse is a common and easily fixable issue. Next, inspect the wiring for any signs of damage or loose connections, since faulty wiring can disrupt the system's operation. It's also important to verify the functionality of the speed sensors, which relay vehicle speed information to the cruise control; malfunctioning sensors can lead to significant issues. Utilizing a diagnostic scanner to check for error codes can provide insights into specific problems affecting the cruise control system. Additionally, test the cruise control switch to ensure it is operational, as a defective switch can prevent engagement. Lastly, if your vehicle relies on vacuum pressure for cruise control, inspect the vacuum lines for any leaks or blockages that could impair functionality. By following these steps, you can effectively troubleshoot and potentially resolve the cruise control issue in your Ford E-350 Super Duty.
When troubleshooting cruise control issues in a 2009 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 crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the cruise control's functionality, as the system relies on accurate speed readings to maintain the desired speed. Another potential problem is a blown fuse within the cruise control system; checking and replacing any blown fuses can often resolve the issue. Furthermore, vacuum leaks in the cruise control system can hinder its operation, so inspecting the vacuum lines for any leaks is advisable. Lastly, a malfunctioning cruise control module may require replacement to restore proper function. By systematically addressing these common issues, you can effectively troubleshoot and potentially fix the cruise control problems in your vehicle.
Addressing a non-functioning cruise control in your 2009 Ford E-350 Super Duty should be a priority, even if it may not seem like an immediate safety concern. While the absence of this feature might not directly endanger your safety, it can lead to increased driver fatigue during long trips, as maintaining a constant speed becomes more challenging. Ignoring the problem could also result in more significant issues down the line, such as electrical failures or complications with the vehicle's speed control system. By diagnosing and repairing the cruise control promptly, you not only enhance your driving comfort but also prevent potential escalation of the problem, ensuring that your vehicle operates smoothly and efficiently. Taking the time to address this issue can save you from more extensive repairs and maintain the overall functionality of your vehicle, making it a worthwhile DIY project.

Read about related problems experienced by other Ford E-350 Super Duty drivers like you.
See what others are asking about their Ford E-350 Super Duty. Get answers from RepairPal's community of auto experts and enthusiasts.