why is my Ford Explorer using so much oil suddenly

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

hard

Difficulty

high

Severity

3 min read

569 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 excessive oil consumption in Ford Explorer. 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 battery before working on electrical systems.
•Allow engine to cool before inspecting or removing components.

Symptoms

•Excessive oil consumption
•Blue smoke from the exhaust
•Engine oil warning light illuminated
•Oil leaks under the vehicle
•Rough engine idle or performance issues
•Increased engine noise or knocking

Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for visible oil leaks around the engine and on the ground where the vehicle is parked.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Inspect the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
5
Perform a compression test on the engine cylinders to check for internal leaks.
6
Inspect the valve seals and piston rings for wear or damage.

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
•Compression tester
•Oil catch pan

Parts Required

•Valve cover gaskets
•PCV valve
•Piston rings (if needed)

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Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for visible oil leaks around the engine and on the ground where the vehicle is parked.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
4
Inspect the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
5
Perform a compression test on the engine cylinders to check for internal leaks.
6
Inspect the valve seals and piston rings for wear or damage.

Solution

1. Preparation

Gather tools: socket set, torque wrench, oil catch pan, OBD-II scanner, compression tester.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Gaskets

Inspect Valve Cover Gaskets:
- Remove the engine cover if applicable.
- Unscrew the valve cover bolts and carefully lift the valve cover.
- Inspect the gaskets for wear or damage.
Replace Gaskets:
- Clean the mating surfaces of the valve cover and cylinder head.
- Apply new gaskets and torque the valve cover bolts to the manufacturer’s specifications (typically 10-15 ft-lbs).

3. Replace PCV Valve

Locate the PCV valve and disconnect it from the intake manifold.
Remove the old PCV valve and inspect the hoses for cracks or blockages.
Install the new PCV valve and reconnect the hoses securely.

4. Perform Compression Test

Remove spark plugs for access.
Insert the compression tester into the spark plug hole and crank the engine.
Record the compression readings for each cylinder.
If any cylinder shows low compression, further investigation into piston rings or head gasket may be required.

5. Inspect and Replace Piston Rings (if necessary)

If low compression is confirmed, prepare to remove the engine for more extensive repair.
Remove the engine from the vehicle and disassemble it to access the piston rings.
Replace the worn piston rings and reassemble the engine, ensuring proper torque specifications are followed.