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.
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 diagnose the non-functioning cruise control in a 2002 Dodge Intrepid, start by checking for any fault codes, as these can reveal underlying issues related to the transmission or engine sensors that may be affecting the cruise control system. Next, inspect the control module, sensors, and switches, as these components are often the culprits behind cruise control failures. Pay special attention to the brake light switch, which is essential for cruise control operation; if it’s malfunctioning or misaligned, it can disrupt the system. Additionally, test the cruise control buttons by measuring the voltage when pressed, as irregular readings may indicate a problem with the buttons or their connections. If the cruise control light activates but speed cannot be set, inspect the vacuum lines connected to the diaphragm in the engine compartment, as any damage or disconnection here can hinder functionality. Finally, if previous checks do not resolve the issue, consider examining the MAP sensor and brake relay switch, as these components may also contribute to the malfunction. By following this structured diagnostic approach, you can effectively troubleshoot and potentially fix the cruise control system in your Dodge Intrepid.
Addressing the malfunctioning cruise control in a 2002 Dodge Intrepid is crucial for both safety and driving comfort. While it may not seem like an immediate emergency, the implications of ignoring this issue can lead to significant risks. A malfunctioning cruise control system can result in unexpected changes in speed, which may compromise your ability to maintain control of the vehicle, especially during long highway drives where consistent speed is essential. Common causes of cruise control failure, such as blown fuses or faulty brake pedal sensors, can escalate into more severe problems if left unchecked. Therefore, it is advisable to prioritize a thorough inspection of the cruise control system by a qualified mechanic. By addressing these issues promptly, you not only enhance your driving experience but also ensure a safer journey for yourself and others on the road.
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