why is my Toyota Corolla E170 (2013-2019) burning oil

Toyota Corolla E170 (2013-2019)

Error Codes

4-8 hours

Time

hard

Difficulty

high

Severity

3 min read

518 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 Toyota Corolla E170 (2013-2019). 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 any components.

Symptoms

•Increased oil consumption between oil changes
•Blue smoke from the exhaust during acceleration or deceleration
•Oil spots or leaks under the vehicle
•Engine knocking or unusual noises
•Check engine light illuminated

Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for external oil leaks around the engine and oil pan.
3
Perform a compression test on each cylinder to assess engine health.
4
Conduct a leak-down test to identify potential internal leaks.
5
Scan for diagnostic trouble codes (DTCs) using an OBD-II scanner.
6
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.

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
•Engine hoist
•Screwdriver
•Compression tester
•Oil catch pan

Parts Required

•Engine oil
•Oil filter
•Piston rings (if necessary)
•New gaskets
•PCV valve (if necessary)

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Diagnostic Steps

1
Check the oil level and condition using the dipstick.
2
Inspect for external oil leaks around the engine and oil pan.
3
Perform a compression test on each cylinder to assess engine health.
4
Conduct a leak-down test to identify potential internal leaks.
5
Scan for diagnostic trouble codes (DTCs) using an OBD-II scanner.
6
Examine the PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery for safety.

2. Address External Leaks

Tools Required: Socket set, torque wrench, oil catch pan
Inspect the oil filter and oil drain plug for tightness.
Replace any worn oil gaskets or seals identified during the inspection.
Tighten the oil drain plug to the manufacturer's specified torque (typically around 27 ft-lbs).

3. Replace Worn Engine Components (if necessary)

Tools Required: Engine hoist, socket set, torque wrench, new piston rings, gaskets
Remove the cylinder head:
- Remove any accessories obstructing the cylinder head.
- Disconnect the intake and exhaust manifolds.
- Unbolt the cylinder head following the correct sequence to avoid warping.
Replace piston rings:
- Remove the piston from the engine block and replace old rings with new ones.
- Ensure proper ring orientation and clearance.
Reassemble the cylinder head with a new gasket, following the torque specifications for the bolts.

4. Check and Replace PCV Valve

Tools Required: Screwdriver or socket set
Locate the PCV valve, remove it from the engine.
Inspect for clogs or damage; replace if necessary.
Ensure the new valve is securely fitted.