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2018 Outlander SEL CVT Shuddering and Hesitation – Is this normal or a major issue?

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Jennifer H. · rep 0 · May 22, 5:37 AM · 1 replies · solved · Question

Vehicle: 2018 Mitsubishi Outlander SEL

Hey everyone,

I've got a 2018 Mitsubishi Outlander SEL with about 75,000 miles on it, and lately, I've noticed some concerning behavior from the transmission. When accelerating from a stop or at lower speeds, especially going uphill, the car sometimes shudders or hesitates before picking up speed. It feels like the CVT is struggling to find the right ratio.

I'm worried this might be a sign of a bigger problem with the continuously variable transmission. I've heard mixed things about Mitsubishi CVTs and their long-term reliability. Is this a common issue for this model year, or should I be preparing for a costly repair? I haven't seen any warning lights yet, but the feeling is definitely getting worse.

Any insights or similar experiences would be greatly appreciated. What should I be looking out for, and what's the typical fix if this is indeed a transmission problem?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 22, 5:37 AM

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ClearTheCode admin answer:

It sounds like you're experiencing classic symptoms of a potential issue with your 2018 Mitsubishi Outlander's Continuously Variable Transmission (CVT). While some minor characteristics are inherent to CVT operation, noticeable shuddering and hesitation are not normal and warrant immediate attention. This falls squarely under buying and ownership concerns regarding reliability and potential repair costs.

Here's what you should do:

  1. Check for Diagnostic Trouble Codes (DTCs): Even without a check engine light, a pending code might be present. A common code associated with CVT performance issues, especially shuddering, is P0741 (Torque Converter Clutch Circuit Performance or Stuck Off). Other transmission-related codes like P0700 (Transmission Control System Malfunction) could also appear.
  2. Inspect Transmission Fluid: Check the CVT fluid level and condition. Low or degraded fluid can significantly impact CVT performance. Mitsubishi CVTs require specific fluid types (e.g., Mitsubishi DiaQueen CVT Fluid J4 or equivalent). Incorrect fluid or old, burnt fluid can cause these symptoms.
  3. Consider Software Updates: Sometimes, transmission control module (TCM) software updates are released to address known drivability issues, including hesitation or shuddering.

Common Causes for CVT Shuddering/Hesitation:

  • Degraded CVT Fluid: Over time, the fluid loses its lubricating and cooling properties, leading to increased friction and wear within the transmission.
  • Worn Torque Converter: The torque converter clutch can wear out, causing shuddering during engagement.
  • Internal CVT Component Wear: Issues with the drive belt, pulleys, or valve body can lead to inconsistent power transfer.
  • Sensor Malfunctions: Sensors like the input/output speed sensors or transmission fluid temperature sensor can send incorrect data to the TCM, affecting shift logic.

When to See a Shop:

You should schedule an appointment with a reputable mechanic or a Mitsubishi dealership as soon as possible. Continuing to drive with these symptoms can exacerbate the problem and lead to more extensive, costly repairs. A professional can perform a thorough diagnostic, including scanning for codes, checking fluid pressure, and potentially performing a road test to pinpoint the exact cause. Early diagnosis can often prevent complete transmission failure.

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