FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
my Ford Explorer has a hard start when the engine is hot what should I check - Ford Explorer
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/my Ford Explorer has a hard start when the engine is hot what should I check

my Ford Explorer has a hard start when the engine is hot what should I check

Ford Explorer Fifth Generation (2011-2019)

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

Problem Statement

Learn how to diagnose and fix hard start issues in Ford Explorer when the engine is hot. 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 opening any components that may be hot.

Symptoms

  • •Difficulty starting the engine when it is hot
  • •Engine cranks but does not start immediately
  • •Possible backfiring during attempted starts
  • •Check engine light may be illuminated
  • •Increased fuel consumption

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
  • •Fuel pressure gauge
  • •Multimeter
  • •Socket set
  • •Throttle body cleaner

Parts Required

  • •Fuel filter (if needed)
  • •Spark plugs (if worn)
  • •Ignition coils (if faulty)
  • •Engine coolant temperature sensor (if faulty)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
4 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 necessary tools and parts.
  • Ensure the vehicle is parked on a level surface with the engine cool if working on the fuel system.
  • Disconnect the battery to ensure safety while working on electrical components.
2. Fuel Pressure Check
  • Tools Required: Fuel pressure gauge
  • Connect the fuel pressure gauge to the fuel rail test port.
  • Turn the ignition to the 'ON' position (without starting the engine) and check the fuel pressure reading.
  • Compare the reading against manufacturer specifications; it should typically be within the range specified in the service manual.
  • If the pressure is low, inspect the fuel filter for clogs and the fuel pump for functionality.
3. Ignition System Inspection
  • Tools Required: Multimeter, socket set
  • Remove the spark plugs and inspect them for wear or fouling.
  • Test the ignition coils using a multimeter to ensure they are within resistance specifications.
  • Replace any faulty coils or plugs as necessary.
4. ECT Sensor Replacement (if faulty)
  • Tools Required: Socket set, wire connectors
  • Locate the engine coolant temperature sensor (typically near the thermostat housing).
  • Disconnect the electrical connector and remove the sensor using a socket.
  • Install the new ECT sensor and reconnect the wiring harness.
5. Cleaning Throttle Body and IAC Valve
  • Tools Required: Throttle body cleaner, soft cloth
  • Remove the intake duct to access the throttle body.
  • Use throttle body cleaner and a soft cloth to clean the throttle body and the idle air control valve (IAC).
  • Reassemble the intake duct securely.