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

561 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 the 2013-2019 Toyota Corolla E170. Step-by-step guide with symptoms, diagnostics, and repairs.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool before working on it.
•Disconnect the battery before performing electrical work.

Symptoms

•Check engine light illuminated
•Increased oil consumption between oil changes
•Blue smoke from the exhaust
•Engine knocking or ticking noises
•Oil spots or leaks under the vehicle
•Poor engine performance or rough idling

Diagnostic Steps

1
Check the engine oil level and condition using the dipstick.
2
Inspect for visible oil leaks around the engine, oil pan, and gaskets.
3
Perform a compression test on all cylinders to assess engine health.
4
Inspect the PCV (Positive Crankcase Ventilation) valve for proper operation.
5
Scan the vehicle's OBD-II system for any error codes related to the engine or oil system.
6
Check for oil contamination or fuel dilution in the oil.

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

•Socket set
•Torque wrench
•Gasket scraper
•Pliers
•Compression tester
•OBD-II scanner
•Oil filter wrench
•Oil drain pan
•Funnel

Parts Required

•PCV valve
•Oil filter
•Engine oil (appropriate grade)
•Gaskets (if leaking)

Related Faults

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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, oil pan, and gaskets.
3
Perform a compression test on all cylinders to assess engine health.
4
Inspect the PCV (Positive Crankcase Ventilation) valve for proper operation.
5
Scan the vehicle's OBD-II system for any error codes related to the engine or oil system.
6
Check for oil contamination or fuel dilution in the oil.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal to avoid electrical issues.

2. Inspect and Repair Oil Leaks

Sub-steps:
1. Visually inspect the oil pan, valve cover, and gaskets for leaks.
2. Tighten bolts on the oil pan and valve cover if loose.
3. Replace any damaged gaskets or seals with new ones.
4. Clean any residual oil from the leak areas to prevent future detection issues.
Tools Required: Socket set, torque wrench, gasket scraper.

3. Replace PCV Valve

Sub-steps:
1. Locate the PCV valve on the engine.
2. Disconnect the hose from the valve.
3. Remove the PCV valve from its mounting.
4. Install the new PCV valve and reconnect the hose.
Tools Required: Pliers, socket set.

4. Perform Engine Compression Test

Sub-steps:
1. Remove spark plugs from the engine.
2. Insert the compression tester into the spark plug hole.
3. Crank the engine to take a reading.
4. Repeat for all cylinders and compare readings to specifications.
Tools Required: Compression tester.

5. Change Engine Oil and Filter

Sub-steps:
1. Drain the old engine oil from the oil pan.
2. Replace the oil filter with a new one.
3. Fill the engine with the appropriate grade of new engine oil.
Tools Required: Oil filter wrench, oil drain pan, funnel.