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my Ford Explorer has poor acceleration what could be the cause - Ford Explorer
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/my Ford Explorer has poor acceleration what could be the cause

my Ford Explorer has poor acceleration what could be the cause

Ford Explorer Fifth Generation (2011-2019)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
544 words

Problem Statement

Learn how to diagnose and fix poor acceleration 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 performing maintenance to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Rough or hesitant acceleration
  • •Loss of power during acceleration
  • •Increased fuel consumption
  • •Engine stalling or misfiring
  • •Unusual sounds from the engine or exhaust

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Fuel pressure gauge
  • •Throttle body cleaner
  • •Socket set
  • •Screwdrivers

Parts Required

  • •Air filter
  • •Spark plugs
  • •Ignition coils (if needed)
  • •Mass Air Flow (MAF) sensor (if needed)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
4 items

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the battery to avoid electrical shocks.
2. Clean or Replace Air Filter
  • Remove the air filter from its housing.
  • Inspect for dirt and debris; clean or replace if necessary.
  • Reinstall the clean or new air filter securely.
3. Fuel Pressure Check
  • Connect the fuel pressure gauge to the fuel rail service port.
  • Turn the ignition key to the "ON" position (do not start the engine) to read the pressure.
  • Compare the reading to the manufacturer's specifications (typically between 30-50 PSI).
  • If pressure is low, inspect the fuel pump and filter for blockages or failure.
4. Throttle Body Cleaning
  • Remove the intake duct to access the throttle body.
  • Use throttle body cleaner and a soft cloth or brush to clean the interior surfaces.
  • Ensure the throttle plate operates smoothly and is free from carbon deposits.
  • Reassemble the intake duct securely.
5. Ignition System Inspection
  • Remove spark plugs and inspect for wear, fouling, or damage.
  • Replace any worn or damaged spark plugs with OEM or recommended replacements.
  • Check ignition coils for proper operation and replace if necessary.
6. MAF Sensor Testing
  • Disconnect the MAF sensor and inspect the electrical connector for corrosion or damage.
  • Clean the MAF sensor using MAF cleaner, avoiding contact with the sensor element.
  • Reconnect the sensor and clear any stored codes.