why does my Ford Explorer have a delay when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

498 words

Problem Statement

Learn how to diagnose and fix acceleration delay in Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

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 any components.

Symptoms

•Delay in throttle response during acceleration
•Engine RPMs increase slowly without corresponding vehicle speed increase
•Possible engine stalling during acceleration
•Unusual sounds from the engine or transmission during acceleration
•Check engine light illuminated
•Poor fuel economy

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for error codes.
2
Check the transmission fluid level and condition.
3
Inspect the throttle body for cleanliness and proper operation.
4
Test for vacuum leaks in the intake system.
5
Assess fuel pressure using a fuel pressure gauge.
6
Evaluate the condition of the spark plugs and ignition system.

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
•Throttle body cleaner
•Fuel pressure gauge
•Smoke machine or carburetor cleaner
•Transmission fluid
•Funnel

Parts Required

•Transmission fluid
•Replacement vacuum hoses (if necessary)
•Fuel filter (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics (OBD-II) for error codes.
2
Check the transmission fluid level and condition.
3
Inspect the throttle body for cleanliness and proper operation.
4
Test for vacuum leaks in the intake system.
5
Assess fuel pressure using a fuel pressure gauge.
6
Evaluate the condition of the spark plugs and ignition system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in a safe and level area.
Disconnect the battery to prevent any electrical issues.

2. Inspect and Clean Throttle Body

Sub-steps:
- Remove the air intake duct connected to the throttle body.
- Use throttle body cleaner and a soft brush to clean the throttle plate and surrounding areas.
- Reinstall the air intake duct securely.
Tools Required: Throttle body cleaner, soft brush, socket set.

3. Check Transmission Fluid

Sub-steps:
- Locate the transmission dipstick (if applicable).
- Remove the dipstick, wipe it clean, and reinsert it.
- Check the fluid level and condition; if low or burnt, replace the fluid.
Tools Required: Transmission fluid, funnel.

4. Test Fuel Pressure

Sub-steps:
- Locate the fuel pressure test port on the fuel rail.
- Attach the fuel pressure gauge to the port.
- Turn the ignition to the "on" position (do not start) and read the pressure; compare it to manufacturer specifications.
- If pressure is low, check the fuel pump and filter.
Tools Required: Fuel pressure gauge.

5. Inspect for Vacuum Leaks

Sub-steps:
- Visually inspect all vacuum hoses for cracks or disconnections.
- Use a smoke machine or carburetor cleaner to identify any leaks.
- Replace any damaged hoses and reseal connections as needed.
Tools Required: Smoke machine or carburetor cleaner.