1990 Chevrolet Celebrity Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 1990 Chevrolet Celebrity and How to Fix Them

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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 1990 Chevrolet Celebrity 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 1990 Chevrolet Celebrity 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.

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 steps to diagnose the non-functioning cruise control in a 1990 Chevrolet Celebrity?

To effectively diagnose the non-functioning cruise control in your 1990 Chevrolet Celebrity, start with a systematic approach that prioritizes simpler checks before delving into more complex issues. Begin by inspecting the fuse box for any blown fuses, as this is a common and easily fixable problem that can disrupt the cruise control system. Consult your vehicle's manual to locate the fuse box and identify the specific fuses related to the cruise control. Next, examine the wiring for any visible signs of wear or damage, as frayed wires can lead to intermittent issues. Pay close attention to the control switches and spiral cables, as faults in these components can create open circuits that prevent the cruise control from functioning. Lastly, ensure that the cruise control system is not inadvertently turned off, as this simple oversight can often be the culprit behind its failure to engage. By following these steps, you can efficiently narrow down the potential causes and take the necessary actions to restore your cruise control functionality.

What are the common problems that could cause the cruise control to stop working in a 1990 Chevrolet Celebrity?

When dealing with cruise control issues in a 1990 Chevrolet Celebrity, it's essential to understand the common problems that may arise. One frequent culprit is a blown fuse, which can easily be checked and replaced to restore functionality. Another potential issue is a faulty cruise control switch; if this switch malfunctions, it may prevent the system from engaging, necessitating a replacement. Additionally, vacuum leaks can disrupt the operation of the cruise control system, so inspecting the vacuum lines for any leaks is crucial. A defective speed sensor can also lead to erratic behavior or complete failure of the cruise control, making its replacement a possible solution. Lastly, problems with the brake light switch can interfere with cruise control operation, as this switch is designed to disengage the system when brakes are applied. By systematically addressing these common issues, DIYers can effectively troubleshoot and potentially resolve cruise control problems in their Chevrolet Celebrity.

How urgent is it to address the non-functioning cruise control in a 1990 Chevrolet Celebrity?

When it comes to a non-functioning cruise control in a 1990 Chevrolet Celebrity, the urgency of addressing the problem cannot be overstated. While it may not seem like an immediate emergency, neglecting this issue can lead to significant safety risks and potential damage to your vehicle. A malfunctioning cruise control system often points to underlying problems within the vehicle's electrical system or sensors, which, if left unchecked, could escalate into more serious mechanical failures. For DIY enthusiasts, understanding the importance of timely intervention is crucial; not only does it enhance your driving experience by reducing fatigue on long trips, but it also helps maintain fuel efficiency. Moreover, addressing the issue promptly can prevent further complications that may arise, ultimately saving you time and money on repairs. Therefore, if you notice any signs of malfunction, it is advisable to conduct a thorough inspection or consult a qualified mechanic to ensure your vehicle remains safe and functional on the road.

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