why is my Ford Explorer Fifth Generation (2011-2019) transmission slipping when I accelerate

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

527 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 slipping issues in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine and transmission to cool before starting work to avoid burns.

Symptoms

•Slipping or delayed engagement when shifting gears
•Engine revs higher than normal while accelerating
•Harsh or abrupt shifts between gears
•Check Engine light illuminated
•Unusual noises (grinding or whining) during acceleration

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 (color and smell).
3
Inspect the transmission fluid for contamination or burning smell.
4
Examine the transmission filter for blockages or damage.
5
Inspect the transmission pan for leaks or signs of wear.
6
Test the electrical connectors and wiring related to the transmission for damage or corrosion.

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
•Torque wrench
•Transmission fluid pump
•Fluid catch pan
•Screwdrivers
•Safety goggles
•Gloves

Parts Required

•Transmission fluid
•Transmission filter
•Transmission pan gasket
•Transmission solenoid

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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 (color and smell).
3
Inspect the transmission fluid for contamination or burning smell.
4
Examine the transmission filter for blockages or damage.
5
Inspect the transmission pan for leaks or signs of wear.
6
Test the electrical connectors and wiring related to the transmission for damage or corrosion.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on electrical components.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Transmission fluid pump
Fluid catch pan
Screwdrivers
Safety goggles and gloves

2. Check and Replace Transmission Fluid

Step 1: Locate the transmission dipstick or fill plug.
Step 2: Remove the dipstick or fill plug and check the fluid level. If low, add the appropriate fluid type as specified in the owner’s manual.
Step 3: If fluid is burnt or contaminated, drain the existing fluid using a fluid catch pan and replace it.
- Sub-step: Remove the transmission pan bolts and carefully lower the pan.
- Sub-step: Replace the transmission filter if applicable.
- Sub-step: Reinstall the transmission pan with a new gasket and torque bolts to manufacturer specifications.
- Sub-step: Refill the transmission with new fluid using a transmission fluid pump.

3. Inspect and Repair Electrical Components

Step 1: Check the wiring harness and connectors for any signs of wear or damage.
- Sub-step: Repair or replace any damaged wires or connectors.
Step 2: If error codes indicate a solenoid issue, remove the transmission pan again if necessary and replace the solenoid as per manufacturer specifications.

4. Test Drive

After reassembling, reconnect the battery and take the vehicle for a test drive to ensure the slipping has been resolved.