Massey Ferguson 04.00.58 – Transmission Control Module: Possible Transmission Slippage Detected

This condition occurs when the transmission control system detects a mismatch between the expected input speed and the actual output speed of the transmission. This indicates that the internal clutches, gears, or hydrostatic components are slipping, or that the sensors monitoring these speeds are providing erratic data.

• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S
• Tier 4 (2015-2021)
• 4700
• 5600
• 5700SL
• 7600

1. 1

   Check transmission oil level and condition for low fluid or incorrect oil grade

2. 2

   Inspect the transmission pump suction screen and transmission oil filters for heavy restrictions or blockages

3. 3

   Perform a transmission system pressure test to verify if the pressure regulating valve spring is weak or broken

4. 4

   Perform a transmission pump flow test to rule out low flow caused by a worn hydraulic pump

5. 5

   Test the transmission input and output speed sensors for erratic data

6. 6

   Inspect the transmission control valve for external leaks or blown gaskets causing a loss of clutch engagement pressure

1. 1

   Correct Fluid Issues

   If the fluid is low or degraded, drain the transmission oil, replace the transmission filters, and refill with the correct OEM-specified transmission/hydraulic fluid.

2. 2

   Clean Suction Screen

   Remove, thoroughly clean, and reinstall the transmission pump suction screen.

3. 3

   Reseal Control Valve

   If pressure is being lost at the control valve, remove the valve assembly, inspect the mating surfaces, and replace the control valve gaskets.

4. 4

   Replace Regulating Valve/Pump

   If the pressure test fails, replace the pressure regulating valve spring. If the flow test fails, the transmission pump must be replaced.

5. 5

   Replace Speed Sensors

   If the transmission is mechanically sound but the code persists, replace the transmission speed sensors (input/output) to ensure the TCM is receiving accurate shaft speed data.

6. 6

   Clear Codes & Calibrate

   After repairs, clear the 04.00.58 fault code from the TRANS module and perform a transmission calibration procedure (often required for Dyna-series transmissions after hydraulic repairs).