what should I do if my Ford Explorer Fifth Generation (2011-2019) won’t start in cold weather

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

580 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 starting issues in Ford Explorer 2011-2019 during cold weather. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

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 opening the oil drain plug.

Symptoms

•Engine cranks slowly or not at all
•Check engine light illuminated
•Dashboard lights dim or flicker
•Battery warning light on
•Fuel pump does not activate
•Unusual clicking noise when attempting to start

Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or looseness.
3
Scan the vehicle’s onboard diagnostic system for trouble codes using an OBD-II scanner.
4
Test the starter motor by bypassing the ignition switch to see if the starter engages.
5
Check the fuel system for proper operation by listening for the fuel pump activation sound when turning the ignition key.
6
Inspect the engine oil for viscosity; ensure it is appropriate for cold temperatures.

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

•Multimeter
•Wire brush
•OBD-II scanner
•Socket set
•Fuel pressure gauge
•Oil filter wrench
•Drain pan

Parts Required

•New battery (if needed)
•Fuel pump (if needed)
•Engine oil (appropriate for the climate)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or looseness.
3
Scan the vehicle’s onboard diagnostic system for trouble codes using an OBD-II scanner.
4
Test the starter motor by bypassing the ignition switch to see if the starter engages.
5
Check the fuel system for proper operation by listening for the fuel pump activation sound when turning the ignition key.
6
Inspect the engine oil for viscosity; ensure it is appropriate for cold temperatures.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is cool.
Disconnect the battery by removing the negative terminal.

2. Battery Inspection and Replacement

Sub-steps:
1. Clean the battery terminals with a wire brush and a mixture of baking soda and water if corrosion is present.
2. If the battery voltage is low, jump-start the vehicle or replace the battery.
3. Ensure the new battery is rated for cold cranking amps (CCA) suitable for cold weather.
Tools Required:
- Wire brush
- Baking soda
- New battery (if needed)

3. Starter and Connections Check

Sub-steps:
1. Inspect the starter motor connections; ensure they are tight and free of corrosion.
2. If the starter does not engage, remove it and test it on a bench or replace it if necessary.
Tools Required:
- Socket set
- Multimeter

4. Fuel System Check

Sub-steps:
1. Check the fuel pump relay and fuse; replace if faulty.
2. If the pump does not activate, replace the fuel pump.
Tools Required:
- OBD-II scanner
- Fuel pressure gauge

5. Engine Oil Replacement (if necessary)

Sub-steps:
1. If the engine oil appears too thick for cold weather, drain and replace it with a lower viscosity oil suitable for cold temperatures.
2. Refill with the correct amount and type of oil according to the owner's manual.
Tools Required:
- Oil filter wrench
- Drain pan