1996 Chevrolet C3500 Cruise Control Isn't Working

Fixing Cruise Control Issues in 1996 Chevrolet C3500

Find Repair Location
Reviewed by
Devin Cabugcal
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 1996 Chevrolet C3500 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 1996 Chevrolet C3500 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.

A faulty cruise control module will simply result in deactivation of cruise control settings. This is because a detected error in the cruise control system could lead to hazardous driving conditions, so the module will be disabled, and the cruise control system warning light will be displayed. This will be a different message depending on make and model, and a warning light or message may be displayed on the driver instrument cluster.

What are the initial diagnostic steps to troubleshoot the non-functional cruise control in a 1996 Chevrolet C3500?

When troubleshooting the non-functional cruise control in a 1996 Chevrolet C3500, it's essential to adopt a systematic diagnostic approach that begins with the simplest solutions before progressing to more complex issues. Start by checking the fuse associated with the cruise control system, as a blown fuse is a common and easily fixable problem. Next, inspect the wiring for any visible damage or loose connections, as faulty wiring can disrupt the system's functionality. Testing the cruise control switch is also crucial; if it’s malfunctioning, it will prevent the cruise control from engaging. Given the age of the vehicle, don’t overlook the vacuum lines, which may have developed leaks or damage that could impair the system's operation. Utilizing a diagnostic scanner to check for error codes can provide valuable insights into specific issues affecting the cruise control. Finally, examine the cruise control module for any signs of damage or corrosion, as a defective module can be the root cause of the problem. By following this structured approach, you can effectively identify and address the issues with your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 1996 Chevrolet C3500?

When dealing with a malfunctioning cruise control system in a 1996 Chevrolet C3500, it's crucial to understand the common issues that may be at play. One of the first things to check is the fuse; a blown fuse can completely disable the cruise control functionality. Next, consider the brake pedal switch, as a faulty switch may fail to signal the system to disengage when the brakes are applied, leading to unexpected behavior. Additionally, the cruise control module itself could be defective, preventing the system from engaging or disengaging as intended. Vacuum leaks are another potential culprit, as they can disrupt the necessary pressure for the cruise control to operate correctly. Furthermore, a malfunctioning speed sensor can hinder the system's ability to maintain a constant speed, while wiring issues, such as frayed wires or loose connections, can also interfere with the cruise control's performance. By systematically diagnosing these areas, DIYers can effectively identify and resolve the issue, restoring the cruise control functionality in their Chevrolet C3500.

How urgent is it to address the non-functioning cruise control in my 1996 Chevrolet C3500?

Addressing the non-functioning cruise control in your 1996 Chevrolet C3500 should be considered a priority, as it directly impacts your driving experience and safety. While it may not seem like an immediate emergency, the inability to maintain a constant speed can lead to increased driver fatigue, especially on long journeys. This fatigue can impair your focus and reaction times, potentially increasing the risk of accidents. Additionally, the cause of the malfunction could be something as simple as a blown fuse or a faulty switch, which are relatively easy and inexpensive to fix. However, if left unattended, the issue could escalate into more complex problems that may require professional intervention, leading to higher repair costs and extended downtime for your vehicle. Therefore, it is advisable to address the cruise control issue promptly to ensure a safer and more comfortable driving experience.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.