why does my Ford Explorer Sixth Generation (2020-present) shudder when accelerating

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

662 words

Problem Statement

Learn how to diagnose and fix shuddering during acceleration in the 2020-present Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Drivetrain

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery to avoid electrical shock during repairs
•Ensure the vehicle is on a flat surface and secure it with wheel chocks

Symptoms

•Shuddering or vibration felt through the vehicle when accelerating
•Decreased acceleration power
•Engine hesitation or misfire
•Unusual noises from the engine or transmission during acceleration
•Possible check engine light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the engine and transmission mounts for wear or damage
3
Check the condition of the drive shafts and universal joints (U-joints) for play or damage
4
Examine the transmission fluid level and condition; look for signs of contamination or burning
5
Test the throttle position sensor (TPS) for proper operation using a multimeter
6
Perform a visual inspection of the spark plugs and ignition coils for wear or damage

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
•Pry bar
•Jack
•Jack stands
•Multimeter
•Transmission fluid pump

Parts Required

•Engine mounts
•Transmission mounts
•Drive shaft/U-joints
•Transmission fluid

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any diagnostic trouble codes (DTCs)
2
Inspect the engine and transmission mounts for wear or damage
3
Check the condition of the drive shafts and universal joints (U-joints) for play or damage
4
Examine the transmission fluid level and condition; look for signs of contamination or burning
5
Test the throttle position sensor (TPS) for proper operation using a multimeter
6
Perform a visual inspection of the spark plugs and ignition coils for wear or damage

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is on a flat surface and secure it with wheel chocks.
Disconnect the battery to avoid electrical shock during repairs.

2. Inspect and Replace Engine/Transmission Mounts

Tools Required: Socket set, torque wrench, pry bar
Sub-steps:
1. Remove the bolts securing the engine and transmission mounts using the socket set.
2. Use a pry bar to lift the engine slightly to relieve pressure on the mounts.
3. Remove the old mounts and compare them with the new ones to ensure proper fit.
4. Install new mounts, ensuring they are correctly aligned and secure.
5. Torque the mount bolts to the manufacturer’s specifications.

3. Check and Replace Drive Shafts/U-Joints

Tools Required: Jack, jack stands, socket set
Sub-steps:
1. Raise the vehicle and secure it on jack stands.
2. Inspect the drive shafts for any visible damage or play in the U-joints.
3. If damaged, remove the drive shaft by unbolting it from the differential and transmission.
4. Replace the U-joints if necessary, or install a new drive shaft.
5. Reattach the drive shaft and torque bolts to the manufacturer’s specifications.

4. Transmission Fluid Check and Replacement

Tools Required: Transmission fluid pump, funnel, torque wrench
Sub-steps:
1. Locate the transmission fluid dipstick and remove it.
2. Check the fluid level and condition; if low or dirty, proceed to replace it.
3. Use a fluid pump to remove old fluid from the transmission.
4. Refill with the manufacturer-recommended transmission fluid type using a funnel.
5. Start the engine and cycle through the gears to ensure fluid circulates properly.

5. Test Throttle Position Sensor

Tools Required: Multimeter
Sub-steps:
1. Locate the throttle position sensor on the throttle body.
2. Disconnect the sensor connector and test the voltage using a multimeter according to the manufacturer’s specifications.
3. If readings are out of range, replace the throttle position sensor.
4. Reconnect the sensor and clear any fault codes from the system.