why is my Ford Explorer Fifth Generation (2011-2019) emitting white smoke from the exhaust?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

585 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 white smoke from the exhaust in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Engine

Estimated Time

4-8 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems
•Allow the engine to cool before opening the cooling system to avoid burns

Symptoms

•White smoke continuously emits from the exhaust
•Sweet smell associated with the exhaust fumes
•Engine overheating or higher than normal temperature readings
•Loss of coolant with no visible leaks
•Poor engine performance or misfiring
•Possible presence of coolant in the oil (milky oil appearance)

Diagnostic Steps

1
Inspect coolant levels and check for signs of contamination in the engine oil (milky appearance)
2
Use an OBD-II scanner to check for any engine codes related to the coolant system or misfires
3
Conduct a compression test on the engine cylinders to determine if there are any leaks
4
Perform a leak-down test to identify if coolant is leaking into the combustion chamber
5
Inspect the head gasket for signs of wear or damage
6
Check for cracks in the engine block or cylinder head

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
•Socket set
•Torque wrench
•Gasket scraper
•Drain pan

Parts Required

•Head gasket
•New coolant
•Engine oil (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•White smoke continuously emits from the exhaust

•Sweet smell associated with the exhaust fumes

•Engine overheating or higher than normal temperature readings

•Loss of coolant with no visible leaks

•Poor engine performance or misfiring

•Possible presence of coolant in the oil (milky oil appearance)

Diagnostic Steps

1
Inspect coolant levels and check for signs of contamination in the engine oil (milky appearance)
2
Use an OBD-II scanner to check for any engine codes related to the coolant system or misfires
3
Conduct a compression test on the engine cylinders to determine if there are any leaks
4
Perform a leak-down test to identify if coolant is leaking into the combustion chamber
5
Inspect the head gasket for signs of wear or damage
6
Check for cracks in the engine block or cylinder head

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on the vehicle.
Allow the engine to cool completely before beginning any work.

2. Drain Coolant

Place a drain pan under the radiator.
Open the drain valve or remove the lower radiator hose to drain the coolant completely.
Dispose of the old coolant according to local regulations.

3. Remove Components

Intake Manifold Removal:
- Disconnect any sensors and hoses attached to the intake manifold.
- Remove bolts securing the manifold and carefully lift it off.
Cylinder Head Removal:
- Remove the valve cover to access the cylinder head.
- Disconnect any attached components (e.g., timing belt/chain, exhaust manifold).
- Remove the cylinder head bolts in the correct sequence as specified in the service manual.
- Carefully lift the cylinder head off the engine block.

4. Inspect and Replace Gasket

Inspect the head gasket for signs of damage or failure.
Clean the mating surfaces on the cylinder head and engine block with a gasket scraper.
Install a new head gasket, ensuring it is aligned properly.

5. Reassemble Components

Reattach the cylinder head, following the torque specifications in the service manual for the head bolts.
Reinstall the intake manifold and any other components that were removed.
Refill the cooling system with new coolant.

6. Final Checks

Reconnect the battery.
Start the engine and allow it to reach operating temperature while monitoring for leaks.
Check the exhaust for any remaining white smoke.