my Ford Explorer Fifth Generation (2011-2019) loses acceleration going over bumps what's wrong

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

463 words

Problem Statement

Learn how to diagnose and fix loss of acceleration over bumps in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems
•Allow the vehicle to cool before inspecting suspension components

Symptoms

•Loss of power or acceleration over bumps
•Rough ride or excessive bouncing
•Unusual noises from the suspension (clunks or rattles)
•Check engine light illuminated (if related to fuel delivery)
•Poor fuel economy

Diagnostic Steps

1
Inspect the suspension components for wear or damage (shocks, struts, bushings)
2
Scan for error codes using an OBD-II scanner to check for fuel system issues
3
Check fuel pressure to ensure proper delivery to the engine
4
Inspect wiring and connections related to fuel delivery, including the fuel pump and relay
5
Examine the exhaust system for blockages or leaks that could affect performance

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
•Fuel pressure gauge
•Jack and jack stands

Parts Required

•Shocks/struts (if worn)
•Fuel pump (if faulty)

Related Faults

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Diagnostic Steps

1
Inspect the suspension components for wear or damage (shocks, struts, bushings)
2
Scan for error codes using an OBD-II scanner to check for fuel system issues
3
Check fuel pressure to ensure proper delivery to the engine
4
Inspect wiring and connections related to fuel delivery, including the fuel pump and relay
5
Examine the exhaust system for blockages or leaks that could affect performance

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Suspension Components

Inspect Shocks/Struts:
- Use a jack to lift the vehicle and secure it with jack stands.
- Visually inspect the shocks and struts for leakage or damage.
Replace if necessary:
- Remove the bolts securing the shocks/struts to the vehicle.
- Install new shocks/struts with the correct torque specifications (typically around 30-50 lb-ft, refer to the service manual for specifics).

3. Check and Repair Fuel System

Test Fuel Pressure:
- Connect a fuel pressure gauge to the fuel rail.
- Start the engine and check that the pressure matches manufacturer specifications (usually around 50-60 psi).
Replace Fuel Pump (if needed):
- Disconnect the fuel lines at the pump.
- Remove the fuel pump assembly from the tank.
- Install the new pump and reconnect lines, ensuring all fittings are secure.

4. Final Assembly and Reconnect Battery

Reassemble any components removed during inspection or repair.
Reconnect the battery and start the vehicle to check for proper operation.