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2017 Outlander Sport CVT acting up - jerking, slipping, and whining

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Mike T. · rep 0 · May 25, 4:13 AM · 1 replies · solved · Question

Vehicle: 2017 Mitsubishi Outlander Sport ES

My 2017 Mitsubishi Outlander Sport ES, with about 75,000 miles, has been giving me some serious trouble lately. When I'm accelerating, especially from a stop or at lower speeds, the transmission feels like it's jerking or slipping. Sometimes it even feels like it's struggling to find the right "gear" (even though it's a CVT).

I've also noticed a slight whine coming from under the hood that wasn't there before, and it seems to get louder with acceleration. The RPMs seem to fluctuate a bit more than usual too, even when maintaining a steady speed.

Is this a common issue with these CVTs in the Outlander Sport? I'm worried it's going to be a huge repair bill. Has anyone else experienced similar problems and found a solution?

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 4:13 AM

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ClearTheCode admin answer:

It sounds like you're experiencing classic symptoms of a struggling Continuously Variable Transmission (CVT), which can be a significant concern. Mitsubishi CVTs, like many others, require specific maintenance and can develop issues over time.

Here's what you should do and consider:

  1. Check for Diagnostic Trouble Codes (DTCs): Even without a check engine light, a professional scan tool might reveal pending or stored transmission-related codes such as P0741 (Torque Converter Clutch Circuit Performance or Stuck Off), P0715 (Input/Turbine Speed Sensor Circuit Malfunction), or P0720 (Output Speed Sensor Circuit Malfunction). These codes can pinpoint the exact component causing the issue.
  2. Inspect CVT Fluid: The condition and level of your CVT fluid are crucial. Low or degraded fluid can cause slipping and jerking. Mitsubishi CVTs use specific fluid (e.g., Mitsubishi DiaQueen CVT Fluid J4). A fluid change might help if the fluid is just old, but if there's significant metal particulate, it indicates internal wear.
  3. Causes of CVT Issues:
    • Degraded Fluid: Over time, CVT fluid loses its lubrication properties and can't effectively transfer power.
    • Worn Belt/Pulleys: Internal components like the steel belt or pulleys can wear, leading to slipping and whining.
    • Torque Converter Issues: The torque converter can fail, causing shuddering or lack of power.
    • Valve Body Malfunction: The valve body controls fluid pressure; a fault here can lead to erratic behavior.
    • Software Glitches: Sometimes, a simple software update from the dealer can resolve minor shifting anomalies.
  4. When to See a Shop: You should take your Outlander Sport to a reputable transmission specialist or Mitsubishi dealership immediately. Continuing to drive with these symptoms can lead to further, more severe damage, potentially requiring a complete transmission replacement. They can perform a thorough diagnosis, including pressure tests and internal inspections if necessary, to determine the root cause and recommend the appropriate repair.
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