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.
To effectively diagnose the non-functioning cruise control in a 1992 Plymouth Sundance, start with the simplest solutions. Begin by checking the fuses associated with the cruise control system, as a blown fuse can often be the culprit behind the malfunction. Next, assess the brake pedal and throttle body for any irregularities, as these components play a crucial role in the cruise control's operation. Inspect the vacuum actuator and its hoses for signs of wear or damage, as leaks can prevent the system from functioning properly. Additionally, examine the cable that connects the actuator to other components, ensuring it is intact and free from obstructions. Always refer to the vehicle's manual to locate the fuse box and identify the specific fuse for the cruise control. By following these initial steps, you can systematically eliminate common issues and potentially restore functionality to your cruise control system.
When dealing with a malfunctioning cruise control system in a 1992 Plymouth Sundance, it's essential to consider several common problems that could be at play. One of the first things to check is the vehicle's fuse box; a blown fuse can easily disrupt the cruise control's functionality. If the fuse is intact, the next step is to inspect the cruise control switch located on the steering wheel, as a faulty switch may require replacement. Additionally, vacuum leaks in the system can prevent the cruise control from maintaining speed, so examining the vacuum lines for any signs of wear or damage is crucial. Another critical component to assess is the speed sensor, which plays a vital role in the cruise control's operation; if it's malfunctioning, the system won't work correctly. Lastly, the brake light switch should be evaluated, as a defective switch can inadvertently disable the cruise control when the brakes are applied. By systematically checking these components, DIYers can effectively diagnose and address the issues affecting their cruise control system.
While the non-functioning cruise control in your 1992 Plymouth Sundance may not seem like an urgent repair, it is essential to recognize the potential implications of neglecting this issue. Cruise control plays a significant role in enhancing safety during long drives by helping maintain a consistent speed, which can reduce driver fatigue and improve overall road safety. Additionally, a functioning cruise control system contributes to a more comfortable driving experience, particularly on highways where maintaining speed can alleviate the monotony of long trips. Furthermore, addressing this repair can positively impact the resale value of your vehicle; prospective buyers often prefer cars with all features in working order. Therefore, while it may not be an immediate emergency, timely attention to your cruise control system can lead to a smoother driving experience and help preserve the vehicle's condition and value.

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.
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.
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