why does my Toyota Corolla E170 (2013-2019) have a burning smell after driving?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

597 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 the burning smell issue in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Cooling System

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 the radiator or touching any components.

Symptoms

•Burning smell noticeable after driving
•Smoke observed from under the hood
•Engine overheating warning light illuminated
•Poor acceleration or power loss
•Fluid leaks underneath the vehicle

Diagnostic Steps

1
Inspect the engine bay for any visible signs of burnt components or fluid leaks.
2
Check coolant levels in the reservoir and radiator for low levels.
3
Scan the vehicle's onboard diagnostics using an OBD-II scanner for any error codes.
4
Examine the condition of the belts and hoses for signs of wear or damage.
5
Inspect the oil level and condition, looking for signs of burning or contamination.
6
Test the operation of the cooling fan and thermostat for proper function.

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
•Multimeter
•Jack and jack stands
•Oil catch pan

Parts Required

•Engine oil (appropriate type)
•Oil filter
•Coolant
•Replacement belts and hoses (if needed)

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Diagnostic Steps

1
Inspect the engine bay for any visible signs of burnt components or fluid leaks.
2
Check coolant levels in the reservoir and radiator for low levels.
3
Scan the vehicle's onboard diagnostics using an OBD-II scanner for any error codes.
4
Examine the condition of the belts and hoses for signs of wear or damage.
5
Inspect the oil level and condition, looking for signs of burning or contamination.
6
Test the operation of the cooling fan and thermostat for proper function.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the engine is cool before starting work.
Disconnect the battery to avoid electrical issues during repairs.

2. Check and Replace Coolant

Sub-steps:
1. Locate the coolant reservoir and radiator cap.
2. Remove the radiator cap and check the coolant level.
3. If low, mix the appropriate type of coolant with distilled water according to the manufacturer's specifications (typically a 50:50 mix).
4. Fill the radiator and reservoir to the recommended levels.
5. Replace the radiator cap securely.

3. Inspect and Replace Belts and Hoses

Sub-steps:
1. Visually inspect all belts for cracks, fraying, or excessive wear.
2. Check hoses for leaks, bulges, or softness.
3. If any are damaged, use a socket set to remove the old belts and hoses.
4. Install new belts and hoses, ensuring they are properly tensioned and secured according to torque specifications.

4. Replace Engine Oil

Sub-steps:
1. Raise the vehicle using a jack and secure it with jack stands.
2. Place an oil catch pan under the oil pan.
3. Remove the oil drain plug and allow old oil to drain completely.
4. Replace the oil filter using an oil filter wrench.
5. Reinstall the drain plug and fill the engine with new oil of the appropriate type and viscosity.
6. Start the engine and check for leaks.

5. Check Cooling System Components

Sub-steps:
1. Inspect the cooling fan for proper operation by turning on the engine and allowing it to reach operating temperature.
2. If the fan does not engage, test the fan relay and thermostat using a multimeter.
3. Replace any faulty components as necessary.