my Toyota Corolla E170 (2013-2019) has a burning oil smell what should I do

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

607 words

Problem Statement

Learn how to diagnose and fix a burning oil smell in your Toyota Corolla E170 (2013-2019). 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 the battery before working on electrical systems.
•Allow the engine to cool before opening any components to avoid burns.

Symptoms

•Burning oil smell from the engine compartment
•Possible smoke from the engine bay or exhaust
•Oil spots on the ground where the vehicle is parked
•Engine oil level dropping rapidly
•Check engine light may illuminate

Diagnostic Steps

1
Inspect the engine oil level using the dipstick to determine if it is low.
2
Conduct a visual inspection of the engine bay for oil leaks or residue around gaskets, seals, and oil filter.
3
Check the condition of the oil, looking for discoloration or burnt smell.
4
Inspect the valve cover gasket for signs of wear or leakage.
5
Examine the oil drain plug and oil filter for leaks.
6
Use an OBD-II scanner to check for any error codes related to the engine.

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
•Oil filter wrench
•Torque wrench
•Clean rags
•Solvent

Parts Required

•Valve cover gasket (if needed)
•Oil filter (if needed)
•Oil drain plug washer (if needed)
•Engine oil

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Diagnostic Steps

1
Inspect the engine oil level using the dipstick to determine if it is low.
2
Conduct a visual inspection of the engine bay for oil leaks or residue around gaskets, seals, and oil filter.
3
Check the condition of the oil, looking for discoloration or burnt smell.
4
Inspect the valve cover gasket for signs of wear or leakage.
5
Examine the oil drain plug and oil filter for leaks.
6
Use an OBD-II scanner to check for any error codes related to the engine.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to avoid any electrical issues during repair.

2. Inspect and Clean

Tools Required: Clean rags, solvent, and a brush.
Clean the engine bay around suspected leak areas with solvent and rags to remove oil residue for better visibility.

3. Address Oil Leaks

If the valve cover gasket is leaking:
- Remove the bolts securing the valve cover using a socket set.
- Gently lift the valve cover and remove the old gasket.
- Clean the mating surfaces thoroughly.
- Place a new gasket and reattach the valve cover, tightening the bolts to the manufacturer’s specified torque (typically around 7-9 ft-lbs).
If the oil drain plug is leaking:
- Use a socket set to remove the drain plug.
- Inspect the washer and replace it if damaged.
- Reinstall the drain plug and tighten to the recommended torque (typically around 18-22 ft-lbs).
If the oil filter is leaking:
- Use an oil filter wrench to remove the old oil filter.
- Lubricate the rubber O-ring of the new filter with fresh oil before installation.
- Install the new oil filter, tightening it hand-tight plus a ¾ turn.

4. Refill Engine Oil

After addressing all leaks, refill the engine oil using the appropriate type and amount specified in the owner’s manual.
Check the oil level with the dipstick and add oil as necessary.

5. Final Checks

Reconnect the battery.
Start the engine and let it idle for a few minutes.
Monitor for any signs of leaks and ensure the burning smell has dissipated.