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2005 RAM 3500
5.9L I6 Cummins•4WD•diesel•ISB•turbo
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Repairs0Labor523Torque138Fluid11DTC1684Battery1Maintenance0Recalls0
P0867high severityPowertrain

Transmission Fluid Pressure

on 2005 Ram 3500 5.9L I6 Cummins · 4WD

What this code means

The transmission fluid pressure is outside the expected operating range. Improper pressure can cause harsh or slipping shifts.

Symptoms

  • Slipping transmission
  • Harsh or delayed shifts
  • Transmission warning light

Common causes

  • Low transmission fluid
  • Faulty pressure sensor
  • Worn pump or valve body
  • Internal fluid leak

Diagnostic steps

  1. Check transmission fluid level and condition
  2. Scan for pressure-related codes
  3. Test fluid pressure sensor
  4. Perform hydraulic pressure test
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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