why does my Ford Explorer jerk when shifting gears

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

499 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 jerking issues in Ford Explorer. Step-by-step guide with diagnostic procedures 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 components.
•Allow the engine to cool before inspecting or replacing transmission fluid.

Symptoms

•Jerking or harsh shifting during gear changes
•Delayed engagement when accelerating from a stop
•Unusual noises (clunking or grinding) during gear shifts
•Check engine light illuminated
•Decreased fuel efficiency

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for any error codes related to the transmission.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the transmission fluid for contamination (metal shavings, burnt smell).
4
Examine the transmission control module (TCM) connections and wiring for damage or corrosion.
5
Test the throttle position sensor (TPS) using a multimeter to ensure it is functioning correctly.
6
Conduct a road test to observe shifting behavior 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
•Multimeter
•Socket set
•Transmission funnel
•Fluid pump
•Screwdriver

Parts Required

•Transmission fluid
•Transmission filter
•Pan gasket
•Throttle position sensor (if replacement is necessary)

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for any error codes related to the transmission.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the transmission fluid for contamination (metal shavings, burnt smell).
4
Examine the transmission control module (TCM) connections and wiring for damage or corrosion.
5
Test the throttle position sensor (TPS) using a multimeter to ensure it is functioning correctly.
6
Conduct a road test to observe shifting behavior under various driving conditions.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Disconnect the negative battery terminal to prevent electrical shorts.
Gather tools and parts needed for the repair.

2. Check and Replace Transmission Fluid

Tools Required: Transmission funnel, pan, socket set, fluid pump
Remove the transmission pan using a socket set.
Drain the old transmission fluid into a suitable container.
Inspect the transmission filter; replace it if clogged or damaged.
Clean the transmission pan and replace the pan gasket.
Refill with new transmission fluid according to the manufacturer's specifications.

3. Inspect and Repair Electrical Connections

Tools Required: Multimeter, wire brush, dielectric grease
Inspect the TCM wiring harness for corrosion or breaks.
Clean any corroded connections with a wire brush.
Apply dielectric grease to prevent future corrosion and reconnect the wiring.

4. Throttle Position Sensor (TPS) Adjustment

Tools Required: Multimeter, screwdriver
Locate the TPS on the throttle body.
Disconnect the TPS electrical connector.
Using a multimeter, check the voltage output while moving the throttle plate.
If the voltage is out of the specified range (consult the service manual), replace the TPS.