Oldsmobile Custom Cruiser Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your Oldsmobile Custom Cruiser 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 Oldsmobile Custom Cruiser 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 Oldsmobile Custom Cruiser 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.

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.

Troubleshooting Cruise Control Issues in an Oldsmobile Custom Cruiser

When troubleshooting cruise control issues in your Oldsmobile Custom Cruiser, it's essential to adopt a systematic diagnostic approach. Start by checking the simplest potential problems, such as a blown fuse, which is often the first culprit in cruise control failures. If the fuse is intact, inspect the vacuum actuator and associated hoses for any signs of damage or wear, as these components are crucial for maintaining speed. Next, evaluate the condition of the brake pedal and throttle body, since any malfunction here can disrupt the cruise control system. Additionally, be mindful of any engine-related issues that may trigger a check engine light, as these can also interfere with cruise control functionality. Finally, examine the brake light switch, ensuring it is properly adjusted and functioning, as a faulty switch can inadvertently disable the cruise control. By following this structured approach, you can effectively identify and resolve the issues affecting your vehicle's cruise control system.

What Could Cause the Cruise Control to Malfunction in an Oldsmobile Custom Cruiser?

When diagnosing cruise control malfunctions in an Oldsmobile Custom Cruiser, it's essential to consider several common problems that could be affecting the system. A blown fuse is often the first culprit to check, as it can disrupt the power supply necessary for the cruise control to operate. Additionally, a defective brake pedal switch is a frequent issue, as it can prevent the cruise control from engaging or cause it to disengage unexpectedly. Other potential problems include issues with the throttle control system or the anti-lock braking system (ABS), which can interfere with the cruise control's functionality. In older models, a broken vacuum line is a common failure point, as these systems rely heavily on vacuum pressure to maintain speed. Furthermore, faulty switches, speed sensor malfunctions, or more complex issues involving the control module or engine control module (ECM) may also contribute to cruise control failures. It's also important to inspect the vacuum actuator, hoses, and cables for any damage, as these components are critical for maintaining speed in older vehicles. Lastly, ensure that the brake light switch is properly adjusted and functioning, as an out-of-adjustment switch can inadvertently activate the cruise control's turn-off signal. By systematically checking these areas, you can effectively troubleshoot and potentially resolve cruise control issues in your Oldsmobile Custom Cruiser.

Why is the Cruise Control Not Working in an Oldsmobile Custom Cruiser?

When the cruise control in your Oldsmobile Custom Cruiser fails, it’s crucial to address the problem promptly to avoid safety risks and further mechanical complications. A blown fuse or a malfunctioning brake pedal switch can prevent the cruise control from engaging, which not only affects your driving comfort but can also lead to dangerous situations if you rely on it during long trips. Additionally, issues with the throttle control system or the ABS may disrupt the cruise control's functionality, potentially causing erratic vehicle behavior. In older models, a broken vacuum line can be a common culprit, and neglecting this can lead to more extensive repairs down the line. Furthermore, since the cruise control system depends on accurate speedometer readings, ensuring that the speedometer cable or vehicle speed sensor is operational is essential. If the brake pedal switch is faulty, it may inadvertently disengage the cruise control, leaving you without this important feature when you need it most. Therefore, it’s vital to diagnose and resolve these issues quickly to maintain both the safety and performance of your vehicle.

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