why does my Ford Explorer Fifth Generation (2011-2019) transmission slip when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

548 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix transmission slip issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on the electrical systems.
•Allow the engine to cool before opening the transmission components.

Symptoms

•Engine RPM increases without corresponding vehicle acceleration
•Delayed or rough shifting between gears
•Unusual whining or grinding noises from the transmission
•Check engine light illuminated
•Fluid leaks under the vehicle
•Burning smell from the transmission area

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition, ensuring it is at the correct level and not contaminated.
3
Inspect the transmission fluid for signs of burning or metal shavings.
4
Check the transmission filter for clogs or debris.
5
Examine the condition of the transmission wiring and connectors for any signs of damage or corrosion.
6
Test drive the vehicle to replicate the slipping issue under various driving conditions.

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
•Socket set
•Transmission fluid pump
•Fluid catch basin
•Rags

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition, ensuring it is at the correct level and not contaminated.
3
Inspect the transmission fluid for signs of burning or metal shavings.
4
Check the transmission filter for clogs or debris.
5
Examine the condition of the transmission wiring and connectors for any signs of damage or corrosion.
6
Test drive the vehicle to replicate the slipping issue under various driving conditions.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, transmission fluid pump, fluid catch basin, and rags.
Ensure the vehicle is on a flat surface and the engine is off before starting.

2. Check and Replace Transmission Fluid

Check Fluid Level:
- Locate the transmission dipstick (if applicable) and remove it.
- Wipe it clean, reinsert, and remove to check fluid level.
- Add fluid if low, using the correct type specified in the owner's manual.
Change Fluid:
- Place a fluid catch basin under the transmission pan.
- Remove the transmission pan bolts and carefully lower the pan.
- Allow old fluid to drain completely and inspect the magnet for debris.
- Replace the transmission filter, ensuring a proper fit.
- Clean the pan and reattach it with a new gasket.
- Refill with new transmission fluid through the dipstick tube, checking levels as you go.

3. Inspect and Repair Electrical Components

Inspect Wiring:
- Locate the transmission control module (TCM) and check the wiring harness for damage.
- Repair or replace any damaged wires or connectors.
Check TCM:
- If no issues are found with the wiring, use an OBD-II scanner to monitor TCM performance.
- If necessary, reprogram or replace the TCM according to manufacturer specifications.

4. Test and Finalize

Test Drive:
- After repairs, test drive the vehicle to ensure the slipping issue is resolved.
- Monitor transmission performance during acceleration and shifting.