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.
If the cruise control refuses to turn on at all, the actuator could be at fault. Likewise, if the cruise control stays on but does not maintain a consistent speed, the problem could be a bad actuator. In extreme cases, a malfunctioning actuator could cause the throttle to stick and prevent the vehicle from slowing down. These symptoms may point to a bad actuator. They may also point to other problems with the cruise control and related systems.
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.
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.
To effectively diagnose the non-functioning cruise control in a 1999 Mitsubishi Galant, start with the simplest checks before moving on to more complex diagnostics. Begin by inspecting the cruise control fuse, as a blown fuse can easily disrupt the system's operation. Next, examine the cruise control switch for any visible damage or wear, since a malfunctioning switch can prevent the system from engaging. It's also crucial to check the brake pedal switch, which is responsible for disengaging the cruise control when the brakes are applied; ensure it is functioning correctly and properly adjusted. Finally, utilize a diagnostic scanner to look for any error codes stored in the vehicle's onboard computer, as these codes can provide valuable insights into underlying issues affecting the cruise control system. By following these steps, you can systematically identify the cause of the malfunction and take appropriate action to restore functionality.
When dealing with cruise control issues in a 1999 Mitsubishi Galant, it's crucial to identify the common problems that may be at play. One of the first things to check is the fuse associated with the cruise control system, as a blown fuse can completely disable its functionality. Additionally, the cruise control switch itself may be faulty, which can prevent the system from engaging or responding correctly. Another critical component to inspect is the brake pedal switch; if this switch is defective, it can cause the cruise control to disengage unexpectedly, leading to frustrating driving experiences. Furthermore, vacuum leaks within the cruise control system can hinder its ability to maintain speed, while a malfunctioning speed sensor can disrupt the system's accuracy in holding the set speed. Lastly, issues with the throttle cable can also interfere with the cruise control's performance, making it essential to ensure that all components are functioning properly. By systematically checking these areas, DIYers can effectively diagnose and resolve cruise control problems in their Galant, restoring the convenience of this feature.
When contemplating the urgency of repairing the non-functioning cruise control in your 1999 Mitsubishi Galant, it's essential to weigh the implications of neglecting this feature. While cruise control is primarily a convenience, its malfunction can lead to distractions that may compromise your safety on the road. If the system is erratic or causes unexpected acceleration, it could pose a risk during long drives, particularly on highways where maintaining a steady speed is crucial. Additionally, for those who frequently embark on extended journeys, a functioning cruise control system significantly enhances comfort by reducing fatigue associated with constant pedal pressure. Furthermore, if you have plans to sell or trade in your vehicle, ensuring that all features, including cruise control, are operational can positively impact its resale value. Therefore, while it may not be an immediate priority, addressing the cruise control issue in a timely manner is advisable to ensure a safer, more comfortable driving experience and to maintain the vehicle's market appeal.
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