FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
why does my Ford Explorer's engine rev high when in park - Ford Explorer
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/why does my Ford Explorer's engine rev high when in park

why does my Ford Explorer's engine rev high when in park

Ford Explorer Fifth Generation (2011-2019)

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

Problem Statement

Learn how to diagnose and fix high engine revs 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 components.
  • •Allow the engine to cool before starting any repairs.

Symptoms

  • •Engine RPM fluctuates or remains elevated when in park
  • •Engine stalling or difficulty starting
  • •Check engine light illuminated
  • •Unusual noises from the engine bay
  • •Possible rough idle when shifting to drive

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
  • •Throttle body cleaner
  • •Multimeter
  • •Screwdrivers
  • •Socket set

Parts Required

  • •Idle air control valve (if not functioning)
  • •Vacuum hoses (if damaged)
  • •Mass airflow sensor (if faulty)

Additional Information

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

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather all tools and parts required.
  • Disconnect the vehicle battery to ensure safety during electrical work.
  • Allow the engine to cool before starting any work.
2. Throttle Body Inspection
  • Sub-step 1: Remove the air intake duct to access the throttle body.
  • Sub-step 2: Inspect the throttle plate for carbon buildup and clean with throttle body cleaner.
  • Sub-step 3: Check for proper operation by manually moving the throttle plate.
3. Idle Air Control (IAC) Valve Service
  • Sub-step 1: Locate the IAC valve (typically mounted on the throttle body).
  • Sub-step 2: Disconnect the electrical connector and remove the valve.
  • Sub-step 3: Clean the valve and passageway with appropriate cleaner.
  • Sub-step 4: Reinstall the valve and reconnect the electrical connector.
4. Vacuum Line Inspection
  • Sub-step 1: Visually inspect all vacuum lines connected to the intake manifold and throttle body.
  • Sub-step 2: Replace any damaged or cracked vacuum lines to eliminate leaks.
5. MAF Sensor Check
  • Sub-step 1: Disconnect the MAF sensor electrical connector.
  • Sub-step 2: Remove the MAF sensor from its housing.
  • Sub-step 3: Clean the MAF sensor with MAF cleaner (do not touch the sensor element).
  • Sub-step 4: Reinstall the sensor and reconnect the electrical connector.
6. ECT Sensor Verification
  • Sub-step 1: Locate the ECT sensor (usually near the thermostat).
  • Sub-step 2: Disconnect the sensor connector and test the resistance with a multimeter.
  • Sub-step 3: Compare readings with manufacturer specifications; replace if out of range.