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why does my Ford Explorer have a rough idle when in gear? - Ford Explorer
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/why does my Ford Explorer have a rough idle when in gear?

why does my Ford Explorer have a rough idle when in gear?

Ford Explorer Fifth Generation (2011-2019)

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

Problem Statement

Learn how to diagnose and fix rough idle issues in Ford Explorer. Step-by-step guide with diagnostic procedures 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 inspecting or working on any components.

Symptoms

  • •Check engine light illuminated
  • •Engine vibrates excessively at idle
  • •Decreased acceleration response
  • •Unusual noises from the engine compartment
  • •Potentially increased fuel consumption
  • •Stalling when coming to a stop

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
  • •Spark plug socket
  • •Fuel pressure gauge
  • •Screwdriver set
  • •Jack
  • •Jack stands

Parts Required

  • •Spark plugs
  • •IAC valve (if necessary)
  • •Fuel filter (if necessary)

Additional Information

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

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Solution
1. Preparation
  • Gather tools and parts needed for the repair.
  • Disconnect the battery to ensure safety while working on the electrical components.
2. Addressing Ignition Issues
  • Tools Required: Socket set, torque wrench, spark plug socket.
  • Remove the spark plug wires and then the spark plugs from the engine.
  • Inspect the spark plugs for wear; replace them if they are fouled or worn.
  • Reinstall new spark plugs and torque them to the manufacturer's specifications (typically around 13-16 lb-ft).
  • Reattach the spark plug wires securely.
3. Cleaning or Replacing the IAC Valve
  • Tools Required: Screwdriver set, cleaning solvent (if cleaning).
  • Locate the IAC valve and remove it from the throttle body.
  • Clean the IAC valve with an appropriate solvent if it is dirty; ensure all carbon deposits are removed.
  • If the IAC valve is faulty, replace it with a new component.
  • Reinstall the IAC valve and ensure it is sealed properly.
4. Checking Fuel System
  • Tools Required: Fuel pressure gauge, line wrench.
  • Connect the fuel pressure gauge to the fuel rail.
  • Start the engine and monitor the fuel pressure; it should be within the manufacturer's specifications (consult service manual).
  • If pressure is low, check for fuel filter blockage or fuel pump failure. Replace the fuel filter if needed and consider replacing the fuel pump if necessary.
5. Inspecting Engine Mounts
  • Tools Required: Jack, jack stands, socket set.
  • Lift the vehicle and inspect the engine mounts for signs of cracks or excessive wear.
  • If damaged, replace the engine mounts with new ones, ensuring they are torqued to specifications.