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P0944

PowertrainTransmission Pressurehigh severity

Hydraulic Pressure Unit Loss of Pressure

What P0944 Means

The transmission hydraulic system has lost pressure. This usually indicates a major leak, a failed pump, or a stuck valve preventing proper pressure buildup.

Symptoms

  • Transmission slipping
  • No shifting or stuck in gear
  • Transmission warning light on

Common Causes

  • Faulty hydraulic pump
  • Major internal transmission leak
  • Low transmission fluid
  • Stuck pressure control valve

Diagnostic Steps

  1. Check transmission fluid level and condition
  2. Test line pressure with a gauge
  3. Inspect for internal and external leaks
  4. Test pump and pressure control solenoid operation

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