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what to do if my Honda Pilot's check engine light keeps coming on - Honda Pilot
Home/Cars/Honda/Pilot/Third Generation (2016-present)/what to do if my Honda Pilot's check engine light keeps coming on

what to do if my Honda Pilot's check engine light keeps coming on

Honda Pilot Third Generation (2016-present)

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
544 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Honda Pilot. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Engine
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before inspecting or working on components.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or stalling
  • •Decreased fuel efficiency
  • •Poor acceleration or loss of power
  • •Unusual noises from the engine
  • •Increased emissions or failed emissions test

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 pressure gauge
  • •Multimeter

Parts Required

  • •Spark plugs
  • •Air filter
  • •Gas cap (if damaged)
  • •Fuel filter (if necessary)

Additional Information

Affected Component
Engine
Estimated Time
1-3 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, ensuring the vehicle is parked on a level surface.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Code Analysis
  • Connect the OBD-II scanner to the vehicle's diagnostic port.
  • Record the error codes and research their meanings to determine the likely problem area.
3. Inspect and Replace Components

A. Gas Cap Inspection

  • Remove the gas cap and inspect for cracks or wear; replace if damaged.
  • Reinstall the cap and ensure it clicks securely.

B. Spark Plug Replacement

  • Remove the ignition coil by unscrewing the retaining bolts.
  • Pull the coil out gently, disconnect the wiring harness.
  • Use a spark plug socket to remove old spark plugs; check gap specifications.
  • Install new spark plugs and torque to manufacturer specifications (typically around 13 lb-ft).
  • Reinstall the ignition coils.

C. Air Filter Replacement

  • Locate the air intake box and unclip it to access the air filter.
  • Remove the old air filter and clean any debris from the housing.
  • Insert the new air filter, ensuring it fits snugly, and reassemble the intake box.
4. Fuel System Check
  • Using a fuel pressure gauge, check the fuel pressure at the fuel rail; compare with manufacturer specifications.
  • If pressure is low, inspect the fuel pump and filter; replace if necessary.