P0867 – Transmission Fluid Pressure High

Description

The ECM detects excessively high transmission fluid pressure.

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Symptoms

  • Harsh shifting
  • Overheating
  • Slipping

Causes

  • Pressure regulator failure
  • Valve body issues
  • Blocked passages

Diagnosis

  • Monitor pressure data
  • Inspect valve body
  • Check regulator

Repair

  • Service valve body
  • Replace regulator
  • Flush transmission