Solving Transmission Solenoid Problems in the Mitsubishi Eclipse Cross SEL
The Mitsubishi Eclipse Cross SEL is a stylish and versatile compact SUV, but some owners of the 2018–2020 models have encountered a frustrating issue: problems with the transmission solenoid. This component plays a critical role in ensuring smooth gear shifts and optimal transmission performance. When it malfunctions, it can lead to a host of problems, from jerky acceleration to reduced fuel efficiency.
In this blog post, we’ll break down the causes of transmission solenoid issues, their impact on your vehicle, and actionable steps you can take to prevent or resolve them. Whether you’re a current Eclipse Cross owner or considering purchasing one, this guide will help you stay informed and proactive.
What Is a Transmission Solenoid, and Why Does It Matter?
The transmission solenoid is an electro-hydraulic valve that controls the flow of transmission fluid within your vehicle’s transmission system. It ensures that the right amount of fluid reaches the right components at the right time, enabling smooth gear shifts and efficient operation.
When the solenoid fails, it can disrupt this delicate balance, leading to poor transmission performance. In the Mitsubishi Eclipse Cross SEL, this issue has been particularly prevalent in models equipped with the Continuously Variable Transmission (CVT).
Common Symptoms of Transmission Solenoid Problems
If your Eclipse Cross SEL is experiencing solenoid-related issues, you may notice one or more of the following symptoms:
- Transmission Slipping or Jerking:
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The transmission may fail to engage properly, causing the vehicle to jerk or hesitate during acceleration or gear shifts.
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Check Engine Light:
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A malfunctioning solenoid often triggers the check engine light, accompanied by diagnostic trouble codes (DTCs) such as P0750 (Shift Solenoid A Malfunction).
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Reduced Fuel Efficiency:
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Inefficient gear shifts can lead to increased fuel consumption, costing you more at the pump.
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Potential for Complete Transmission Failure:
- If left unaddressed, solenoid problems can escalate, causing severe damage to the transmission and requiring costly repairs or replacements.
Root Causes of Transmission Solenoid Issues
Understanding the root causes of solenoid problems can help you take preventative measures. Here are the most common culprits:
- Faulty Solenoid Design:
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Some reports suggest that the solenoid design in certain Eclipse Cross SEL models may be prone to premature wear or failure due to inadequate materials or manufacturing tolerances.
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Electrical Issues:
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Faulty wiring or poor electrical connections can disrupt the solenoid’s operation, leading to erratic transmission behavior.
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Contaminated Transmission Fluid:
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Dirty or degraded transmission fluid can clog the solenoid valves, impairing their functionality.
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Software Glitches:
- Outdated or malfunctioning transmission control module (TCM) software can cause solenoid-related issues.
Repair Options for Transmission Solenoid Problems
If you’re experiencing solenoid-related issues, here are the most common repair options:
- Solenoid Replacement:
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Replacing the faulty solenoid is often the most effective solution. Opt for OEM (Original Equipment Manufacturer) parts to ensure compatibility and durability.
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Transmission Fluid Flush:
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Flushing the transmission fluid can remove contaminants and restore proper solenoid function.
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TCM Software Update:
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In some cases, updating the transmission control module software can resolve solenoid issues without the need for physical repairs.
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Electrical System Inspection:
- A thorough inspection of the wiring and electrical connections can identify and fix any underlying issues.
Preventative Measures to Avoid Solenoid Problems
Proactive maintenance is key to preventing transmission solenoid issues. Here are some expert-recommended tips:
- Regular Transmission Fluid Changes:
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Perform transmission fluid changes every 30,000–50,000 miles to prevent contamination and ensure smooth solenoid operation.
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Stay Updated on Software:
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Visit an authorized Mitsubishi service center to ensure your TCM software is up-to-date.
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Address Warning Signs Promptly:
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If you notice any transmission-related symptoms (e.g., slipping, jerking, or check engine light), seek professional assistance immediately.
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Use High-Quality Parts:
- When replacing solenoids or other transmission components, always opt for OEM parts to ensure reliability and performance.
What Owners Are Saying
Here’s what some Mitsubishi Eclipse Cross SEL owners have experienced:
- Common Complaints:
- “My 2019 Eclipse Cross SEL started having transmission issues at 45,000 miles. The car would jerk and hesitate during acceleration.”
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“The check engine light came on, and the dealer said it was a solenoid issue. Repairs cost over $1,200.”
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Positive Feedback on Solutions:
- “Replacing the solenoid and flushing the transmission fluid resolved the issue. The car drives smoothly now.”
- “Updating the TCM software fixed the problem without needing physical repairs.”
Final Thoughts
Transmission solenoid problems in the Mitsubishi Eclipse Cross SEL can be a headache, but they’re not insurmountable. By understanding the causes, recognizing the symptoms, and taking proactive steps, you can keep your vehicle running smoothly and avoid costly repairs.
If you’re experiencing transmission issues, don’t wait—address them promptly to prevent further damage. And if you’re considering purchasing a used Eclipse Cross SEL, be sure to have the transmission thoroughly inspected before making a decision.
Stay informed, stay proactive, and enjoy the ride!
This blog post provides a comprehensive yet accessible guide to understanding and addressing transmission solenoid issues in the Mitsubishi Eclipse Cross SEL. By following the tips and insights shared here, you can ensure your vehicle remains reliable and efficient for years to come.