why is my Ford Mustang S550 (2015-2023) transmission fluid brown and burnt

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and securely lifted using jack stands.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Drain Old Transmission Fluid

• Locate the transmission pan and position a drain pan underneath it.
• Remove the drain plug (if equipped) or unbolt the transmission pan.
• Allow the old fluid to completely drain into the drain pan.

3. Replace Transmission Filter

• If applicable, remove the old transmission filter by unbolting it from the transmission.
• Install the new transmission filter, ensuring it is seated properly and secured.

4. Clean Transmission Pan

• Clean the transmission pan thoroughly using a suitable solvent to remove old gasket material and debris.
• Inspect the pan for any damage, cracks, or signs of wear.

5. Reinstall Transmission Pan

• Apply a new gasket or RTV sealant as per manufacturer's specifications.
• Reinstall the transmission pan and torque the bolts to the specified torque values (consult service manual for exact specifications).

6. Add New Transmission Fluid

• Using a funnel, add the appropriate type and amount of new transmission fluid (refer to the owner's manual for specifications).
• Start the engine and allow it to reach operating temperature, then check the fluid level again, adding more if necessary.

7. Final Check

• After replacing the fluid, test drive the vehicle to ensure smooth shifting.
• Monitor for any leaks around the transmission pan and cooler lines.