why does my Ford Explorer turn over but won't start

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

564 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 the issue of your Ford Explorer turning over but not starting. Step-by-step guide with symptoms and solutions.

Affected Component

Fuel System

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 components.

Symptoms

•Engine cranks but does not start
•No fuel smell from the exhaust
•Check engine light illuminated
•Battery warning light on the dashboard
•Unusual noises during cranking (e.g., clicking)
•Engine sputters momentarily before dying

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check the battery voltage and connections to ensure they are secure and fully charged.
3
Inspect the fuel pump operation by listening for a humming sound when the ignition is turned on.
4
Test for fuel pressure at the fuel rail using a fuel pressure gauge.
5
Check for spark by removing a spark plug and grounding it against the engine block while cranking the engine.
6
Inspect the fuses related to the fuel system and ignition system for any blown fuses.

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
•Torque wrench

Parts Required

•Fuel pump (if necessary)
•Spark plugs (if necessary)
•Ignition coil (if necessary)
•Fuses (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Check the battery voltage and connections to ensure they are secure and fully charged.
3
Inspect the fuel pump operation by listening for a humming sound when the ignition is turned on.
4
Test for fuel pressure at the fuel rail using a fuel pressure gauge.
5
Check for spark by removing a spark plug and grounding it against the engine block while cranking the engine.
6
Inspect the fuses related to the fuel system and ignition system for any blown fuses.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety while working on the vehicle.

2. Fuel System Check

Check Fuel Pump:
- Reconnect the battery and turn the ignition to the "ON" position without starting the engine.
- Listen for the fuel pump priming sound.
- If no sound is heard, check the fuel pump relay and fuse.
Test Fuel Pressure:
- Attach a fuel pressure gauge to the Schrader valve on the fuel rail.
- Turn the ignition to the "ON" position and check the pressure against the manufacturer specifications.
- If pressure is low, replace the fuel pump.

3. Ignition System Check

Test for Spark:
- Remove a spark plug wire and insert a spark tester into the wire.
- Ground the tester to the engine block and crank the engine.
- Check for a strong spark; if absent, replace the ignition coil or spark plugs as necessary.

4. Additional Checks

Inspect Fuses:
- Locate the fuse box and visually inspect the fuses related to the fuel and ignition systems.
- Replace any blown fuses.
Check Crankshaft Position Sensor:
- If no spark is detected, test the crankshaft position sensor with a multimeter according to specifications.
- Replace the sensor if it is outside the specified range.