why does my Ford F-150 13th Generation (2015-2020) crank but won't start?

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

550 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 crank but no start issue in Ford F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Fuel System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Engine cranks but does not start
•No fuel delivery to the engine
•Check engine light may be illuminated
•Possible clicking sound from the starter
•Weak or intermittent electrical power
•Fuel gauge indicating low fuel despite a full tank

Diagnostic Steps

1
Scan the vehicle’s onboard computer using an OBD-II scanner to check for error codes.
2
Verify the battery voltage and connections to ensure adequate power supply.
3
Check fuel pump operation by listening for it to engage when the ignition is turned on.
4
Inspect fuses related to the fuel system and ignition system for any blown fuses.
5
Test the fuel pressure at the fuel rail using a fuel pressure gauge to ensure it meets specifications.
6
Check for spark at the spark plugs using a spark tester to confirm ignition system functionality.

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
•Multimeter
•Fuel pressure gauge
•Spark tester
•Socket set
•Torque wrench

Parts Required

•Fuel pump (if faulty)
•Fuel filter (if clogged)
•Ignition coil (if faulty)
•Spark plugs (if worn)

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Diagnostic Steps

1
Scan the vehicle’s onboard computer using an OBD-II scanner to check for error codes.
2
Verify the battery voltage and connections to ensure adequate power supply.
3
Check fuel pump operation by listening for it to engage when the ignition is turned on.
4
Inspect fuses related to the fuel system and ignition system for any blown fuses.
5
Test the fuel pressure at the fuel rail using a fuel pressure gauge to ensure it meets specifications.
6
Check for spark at the spark plugs using a spark tester to confirm ignition system functionality.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to ensure safety during repair.

2. Check Fuel System

Sub-step 1: Locate the fuel pump relay in the fuse box and check for continuity using a multimeter.
Sub-step 2: If the relay is functional, use the fuel pressure gauge to check the fuel pressure. It should be within the manufacturer's specifications (typically between 30-50 psi).
Sub-step 3: If pressure is low, inspect the fuel filter and replace it if clogged, then check the fuel pump for proper operation.

3. Inspect Ignition System

Sub-step 1: Remove one spark plug wire and insert a spark tester in the boot.
Sub-step 2: Crank the engine and observe if a spark is produced. If no spark is present, inspect the ignition coil and replace if necessary.
Sub-step 3: If spark is present, proceed to check the crankshaft position sensor by using a multimeter to test for proper voltage and signal.

4. Reassemble and Test

Sub-step 1: Reconnect all components, ensuring that connections are secure.
Sub-step 2: Reconnect the negative battery terminal.
Sub-step 3: Attempt to start the engine. If it starts, monitor for any unusual sounds or warning lights.