why is my Toyota Corolla E170 (2013-2019) using so much oil

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

495 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

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 inspecting or changing oil to prevent burns.

Symptoms

•Excessive oil consumption between oil changes
•Blue smoke from the exhaust
•Engine knocking or ticking noises
•Oil warning light illuminated on the dashboard
•Increased frequency of oil top-ups
•Poor engine performance or loss of power

Diagnostic Steps

1
Check the engine oil level and condition using the dipstick.
2
Inspect for visible oil leaks around the engine and under the vehicle.
3
Perform a compression test on each cylinder to assess engine health.
4
Use an OBD-II scanner to check for any stored trouble codes.
5
Inspect PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Check for oil in the coolant, indicating a potential head gasket failure.

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
•Compression tester
•Ratchet and socket set
•Oil filter wrench
•Oil pan
•Funnel

Parts Required

•New PCV valve
•Engine oil (specified by manufacturer)
•Oil filter

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Diagnostic Steps

1
Check the engine oil level and condition using the dipstick.
2
Inspect for visible oil leaks around the engine and under the vehicle.
3
Perform a compression test on each cylinder to assess engine health.
4
Use an OBD-II scanner to check for any stored trouble codes.
5
Inspect PCV (Positive Crankcase Ventilation) system for blockages or malfunctions.
6
Check for oil in the coolant, indicating a potential head gasket failure.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface.
Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace PCV Valve

Tools Required: Ratchet and socket set
Sub-steps:
1. Locate the PCV valve (typically on the valve cover).
2. Disconnect the hose attached to the PCV valve.
3. Remove the old PCV valve and replace it with a new one.
4. Reattach the hose securely.

3. Perform an Oil Change

Tools Required: Oil filter wrench, oil pan, funnel
Sub-steps:
1. Raise the vehicle using a jack and secure it with jack stands.
2. Remove the oil drain plug and drain the old oil into the oil pan.
3. Replace the oil filter with a new one.
4. Reinstall the drain plug and torque to manufacturer specifications.
5. Add the correct type and amount of new engine oil.

4. Perform a Cylinder Compression Test

Tools Required: Compression tester
Sub-steps:
1. Remove the spark plugs to allow access to the cylinders.
2. Insert the compression tester into the spark plug hole.
3. Crank the engine and record the compression readings.
4. Compare results against manufacturer specifications to identify any issues.