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what could cause the check engine light to come on in my Ford Explorer - Ford Explorer
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/what could cause the check engine light to come on in my Ford Explorer

what could cause the check engine light to come on in my Ford Explorer

Ford Explorer Fifth Generation (2011-2019)

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

Problem Statement

Learn how to diagnose and fix check engine light issues 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 any maintenance.

Symptoms

  • •Check engine light illuminated
  • •Decreased fuel efficiency
  • •Rough engine idle
  • •Engine stalling or hesitation during acceleration
  • •Unusual noises from the engine compartment
  • •Increased exhaust emissions or strong fuel odor

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
  • •Socket set
  • •Torque wrench
  • •Fuel injector cleaning kit
  • •Basic hand tools

Parts Required

  • •Spark plugs
  • •Ignition coils
  • •Fuel filter
  • •Gas cap

Additional Information

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

Related Faults

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Park the vehicle on a level surface and engage the parking brake.
  • Disconnect the battery to ensure safety while working on electrical components.
2. Address Fault Codes
  • Connect the OBD-II scanner to the vehicle’s port and retrieve fault codes.
  • Document the codes for reference.
  • Clear the codes and see if they reappear after a test drive.
3. Inspect and Replace Components
  • Ignition System:

    • Remove the engine cover (if applicable).
    • Replace faulty spark plugs and ignition coils, using a torque wrench to tighten to manufacturer specifications (typically around 13-15 lb-ft for spark plugs).
  • Fuel System:

    • Inspect and replace clogged fuel filters.
    • Test and clean fuel injectors using a fuel injector cleaning kit.
  • Evaporative Emission Control System:

    • Inspect the gas cap and replace it if damaged or missing.
    • Check the EVAP canister and related hoses for cracks or blockages.
4. Reassemble and Reconnect
  • Reassemble any components removed during inspection.
  • Reconnect the battery and ensure all connections are secure.
5. Test Drive
  • Conduct a test drive to ensure the check engine light does not reappear and the vehicle operates normally.