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why does my Ford Explorer have poor gas mileage lately - Ford Explorer
Home/Cars/Ford/Explorer/Sixth Generation (2020-present)/why does my Ford Explorer have poor gas mileage lately

why does my Ford Explorer have poor gas mileage lately

Ford Explorer Sixth Generation (2020-present)

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

Problem Statement

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

Affected Component
Fuel System
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 any maintenance.

Symptoms

  • •Check engine light illuminated
  • •Rough idle
  • •Decreased acceleration response
  • •Unusual fuel odor
  • •Increased emissions (visible exhaust smoke)
  • •Engine stalling during acceleration

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
  • •Tire pressure gauge
  • •Socket set
  • •Fuel injector cleaning kit
  • •Torque wrench

Parts Required

  • •Air filter
  • •Fuel injectors (if replacement is necessary)
  • •Spark plugs
  • •Tire pressure sensors (if faulty)

Additional Information

Affected Component
Fuel System
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 necessary tools and parts.
  • Park the vehicle on a flat surface and engage the parking brake.
  • Disconnect the battery to ensure safety during repairs.
2. Replace Air Filter
  • Locate the air filter housing and remove the clips or screws.
  • Remove the old air filter and inspect the housing for debris.
  • Install a new air filter, ensuring it fits snugly into the housing.
  • Reattach the housing cover and secure it properly.
3. Clean or Replace Fuel Injectors
  • If injectors are clogged, use a fuel injector cleaning kit; follow kit instructions for use.
  • To replace, relieve fuel system pressure, disconnect fuel lines, and remove retaining clips.
  • Install new injectors, applying a small amount of lubricant to O-rings for easier installation.
4. Check and Adjust Tire Pressure
  • Use a tire pressure gauge to check each tire's pressure.
  • Inflate tires to the manufacturer-recommended pressure found on the driver's door jamb.
  • Inspect tires for signs of uneven wear or damage; replace if necessary.
5. Replace Spark Plugs
  • Remove the ignition coil or spark plug wire (depending on engine design).
  • Use a spark plug socket to remove old spark plugs.
  • Install new spark plugs, ensuring they are gapped correctly to manufacturer specifications.
  • Reattach the ignition coil or spark plug wires.