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Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/what causes my Ford Explorer's engine to stall when idling

what causes my Ford Explorer's engine to stall when idling

Ford Explorer Fifth Generation (2011-2019)

Severity: highDifficulty: medium2-4 hours
3 min read
502 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix engine stalling issues in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before opening any components.

Symptoms

  • •Engine stalls when coming to a stop
  • •Rough idle or uneven engine performance
  • •Check engine light illuminated
  • •Poor fuel economy
  • •Difficulty starting after stalling

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to identify any stored codes.
  2. 2Check fuel levels and ensure there is adequate fuel in the tank.
  3. 3Inspect the air filter for clogs or dirt that could affect airflow.
  4. 4Examine the throttle body for carbon buildup or obstructions.
  5. 5Test the idle air control (IAC) valve for proper operation.
  6. 6Inspect spark plugs and ignition coils for wear or damage.

Solution

Solution

1. Preparation

  • Gather tools and parts needed for the repair.
  • Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Clean the Throttle Body

  • Sub-steps:
    • Remove the air intake hose connected to the throttle body.
    • Use throttle body cleaner and a soft brush to clean the throttle plate and inside the throttle body.
    • Allow it to dry completely before reassembling.
  • Tools Required: Throttle body cleaner, soft brush, socket set.

3. Replace the Idle Air Control (IAC) Valve

  • Sub-steps:
    • Locate the IAC valve (usually found near the throttle body).
    • Disconnect the electrical connector and unscrew the mounting bolts.
    • Remove the old IAC valve and install the new one, ensuring proper alignment.
    • Reconnect the electrical connector and bolts securely.
  • Tools Required: Socket set, screwdriver set.

4. Change Spark Plugs

  • Sub-steps:
    • Remove the ignition coil(s) by unscrewing the bolts and disconnecting the electrical connector.
    • Use a spark plug socket to remove the old spark plugs.
    • Check the gap on the new spark plugs and install them, tightening to the manufacturer’s torque specifications.
    • Reinstall the ignition coil(s).
  • Tools Required: Spark plug socket, torque wrench, socket set.

5. Reset the Engine Control Module (ECM)

  • Sub-steps:
    • Reconnect the battery after all repairs are completed.
    • Use the OBD-II scanner to reset any error codes.
  • Tools Required: OBD-II scanner.

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
  • Throttle body cleaner
  • Soft brush
  • Socket set
  • Screwdriver set
  • Torque wrench

Parts Required

  • Idle Air Control (IAC) valve
  • Spark plugs

Additional Information

Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

2 items

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