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How do I troubleshoot the Ford Explorer 2021's automatic transmission problems? - Ford Explorer
Home/Cars/Ford/Explorer/Sixth Generation (2020-present)/How do I troubleshoot the Ford Explorer 2021's automatic transmission problems?

How do I troubleshoot the Ford Explorer 2021's automatic transmission problems?

Ford Explorer Sixth Generation (2020-present)

Error Codes
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
694 words

Problem Statement

Learn how to troubleshoot automatic transmission problems in a 2021 Ford Explorer with symptoms, diagnostic steps, and required tools.

Affected Component
automatic transmission

Symptoms

  • •Slipping Gears
  • •Delayed Engagement
  • •Unusual Noises
  • •Warning Lights
  • •Fluid Leaks

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II Scanner
  • •Torque Wrench
  • •Transmission Fluid Dipstick
  • •Funnel
  • •Clean Rags
  • •Socket Set
  • •Screwdrivers (flathead and Phillips)
  • •Creeper (optional for under-vehicle access)
  • •Safety Gloves and Glasses

Additional Information

Affected Component
automatic transmission
Difficulty
medium
Severity
medium
Tools Required
9 items

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Troubleshooting Automatic Transmission Problems in a 2021 Ford Explorer

Tools Required
  • OBD-II Scanner
  • Torque Wrench
  • Transmission Fluid Dipstick
  • Funnel
  • Clean Rags
  • Socket Set
  • Screwdrivers (flathead and Phillips)
  • Creeper (optional for under-vehicle access)
  • Safety Gloves and Glasses
Step 1: Initial Inspection

  1. Visual Inspection:

    • Check for any visible transmission fluid leaks under the vehicle.
    • Inspect the transmission fluid level and condition using the dipstick.
    • Look for any signs of damage or wear on the transmission casing and hoses.

  2. Fluid Condition:

    • Pull the transmission dipstick, wipe it clean, and reinsert it. Remove it again to check the fluid level.
    • Evaluate the color and smell of the fluid. It should be bright red and have a slightly sweet smell. Dark brown or burnt smelling fluid indicates degradation.
Step 2: Scan for Trouble Codes

  1. Connect OBD-II Scanner:

    • Locate the OBD-II port (usually under the dashboard near the driver's seat).
    • Connect the OBD-II scanner and turn on the ignition (without starting the engine).

  2. Read Codes:

    • Follow the scanner instructions to retrieve any Diagnostic Trouble Codes (DTCs).
    • Note down any codes related to the transmission (e.g., P0700, P0710, etc.).
Step 3: Analyze Codes

  1. Refer to Service Manual:

    • Use the vehicle’s service manual to interpret and analyze the trouble codes.
    • Identify if the codes relate to specific sensors, solenoids, or other transmission components.

  2. Research Known Issues:

    • Look for TSBs (Technical Service Bulletins) or known issues related to your specific model and year.
Step 4: Check Transmission Fluid Level
  1. Fluid Level Check:
    • With the engine running and the transmission in park, use the dipstick to ensure the fluid is at the correct level.
    • If low, top up with the manufacturer-recommended transmission fluid.
Step 5: Examine Electrical Connections
  1. Inspect Wiring and Connectors:
    • Check the wiring harness connected to the transmission for any signs of fraying or damage.
    • Ensure all connectors are seated properly and free of corrosion.
Step 6: Test Drive
  1. Conduct a Test Drive:
    • Take the vehicle for a short drive to replicate the symptoms.
    • Pay attention to shifting behavior, unusual noises, and any dashboard warnings.
Repair Instructions
If Fluid is Low
  1. Add Transmission Fluid:
    • Using a funnel, add the recommended transmission fluid through the dipstick tube until the correct level is reached.
    • Recheck fluid level after adding.
If Codes Indicate Sensor Malfunction
  1. Replace Faulty Sensors:
    • If a specific sensor code is present (e.g., speed sensor), locate the sensor per the service manual.
    • Disconnect the wiring harness, remove the sensor using the socket set, and install the new sensor.
    • Reconnect the wiring harness and clear the DTCs with the OBD-II scanner.
If Fluid is Contaminated
  1. Transmission Fluid Change:
    • Drain the old transmission fluid by removing the drain plug (if available) or by dropping the transmission pan.
    • Replace the filter and clean the pan before reinstallation.
    • Refill the transmission with fresh, manufacturer-recommended fluid.
If Mechanical Issues are Present
  1. Professional Assessment:
    • If mechanical issues (like internal damage) are suspected, consult a professional transmission technician for further diagnostics and potential overhauls.
Conclusion

After completing these steps, recheck the vehicle’s operation. If problems persist, further in-depth diagnostics may be required, including pressure tests or internal inspections. Always refer to the specific repair manual for the 2021 Ford Explorer for detailed procedures and specifications.