why does my Ford Explorer shudder when I accelerate

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

519 words

Problem Statement

Learn how to diagnose and fix shuddering during acceleration 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 systems
•Allow the engine to cool before opening the radiator or working on engine components

Symptoms

•Shuddering or vibrating sensation when pressing the accelerator
•Loss of power during acceleration
•Unusual noises (clunking or grinding) during acceleration
•Check engine light illuminated
•Poor fuel economy

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the transmission fluid level and condition; look for discoloration or burnt smell
3
Check engine mounts for wear or damage that could cause abnormal movement
4
Inspect driveshaft and CV joints for damage or excessive play
5
Test the throttle position sensor (TPS) for proper function using a multimeter
6
Evaluate the condition of spark plugs and ignition coils to rule out misfires

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
•Engine hoist or jack
•Fluid catch pan
•Multimeter

Parts Required

•Replacement engine mounts (if damaged)
•Transmission fluid
•Transmission filter (if applicable)
•Replacement driveshaft or CV joints (if damaged)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored diagnostic trouble codes (DTCs)
2
Inspect the transmission fluid level and condition; look for discoloration or burnt smell
3
Check engine mounts for wear or damage that could cause abnormal movement
4
Inspect driveshaft and CV joints for damage or excessive play
5
Test the throttle position sensor (TPS) for proper function using a multimeter
6
Evaluate the condition of spark plugs and ignition coils to rule out misfires

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Engine Mounts (if needed)

Sub-steps:
- Remove any components obstructing access to the engine mounts (e.g., air intake duct).
- Use a socket set to remove the bolts securing the engine mounts to the engine and frame.
- Carefully lift the engine slightly using an engine hoist or jack to relieve pressure on the mounts.
- Install new engine mounts and torque the bolts to factory specifications (consult repair manual for torque values).
- Reinstall any removed components.

3. Transmission Fluid Service

Sub-steps:
- Drain the old transmission fluid using a fluid catch pan.
- Replace the transmission filter if applicable.
- Refill with new transmission fluid (consult the owner's manual for the correct fluid type and capacity).
- Run the engine and cycle through the gears, checking fluid levels and adding as necessary.

4. Inspect Driveshaft and CV Joints

Sub-steps:
- Raise the vehicle securely on jack stands and remove the wheels if necessary.
- Visually inspect the driveshaft for any signs of damage or excessive play in the CV joints.
- If damaged, replace the driveshaft or CV joints as necessary, following the specific repair procedures for the component.