why does my Toyota Camry XV70 (2018-2024) have a burning smell when accelerating

Toyota Camry XV80 (2025-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

545 words

Problem Statement

Learn how to diagnose and fix the burning smell during acceleration in Toyota Camry XV70 (2018-2024). 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 components.
•Allow the engine to cool before performing any inspections or repairs.

Symptoms

•Burning smell noticeable during acceleration
•Possible smoke emanating from the engine compartment
•Decreased engine performance
•Unusual noises from the engine compartment
•Check engine light may illuminate

Diagnostic Steps

1
Inspect engine oil level and condition; look for signs of contamination or burning.
2
Check transmission fluid level and condition; ensure it is not burnt or low.
3
Scan the vehicle's computer for any error codes using an OBD-II scanner.
4
Visually inspect the exhaust system for leaks or damage that could cause burning odors.
5
Examine the engine compartment for any signs of fluid leaks or overheated components.
6
Inspect the belts and hoses for wear or damage that could produce a burning smell.

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
•Oil filter wrench
•Socket set
•Oil catch pan
•Funnel
•Transmission fluid pump
•Flashlight

Parts Required

•Engine oil (specific to the Camry)
•Transmission fluid (specific to the Camry)
•Oil filter
•Belts and hoses (if needed)

Related Faults

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Diagnostic Steps

1
Inspect engine oil level and condition; look for signs of contamination or burning.
2
Check transmission fluid level and condition; ensure it is not burnt or low.
3
Scan the vehicle's computer for any error codes using an OBD-II scanner.
4
Visually inspect the exhaust system for leaks or damage that could cause burning odors.
5
Examine the engine compartment for any signs of fluid leaks or overheated components.
6
Inspect the belts and hoses for wear or damage that could produce a burning smell.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface with the engine off and cool.
Disconnect the battery to prevent electrical shorts.

2. Check and Replace Engine Oil

Tools Required: Oil filter wrench, socket set, oil catch pan, funnel.
Sub-steps:
1. Remove the oil drain plug using the socket set and allow old oil to drain completely into the catch pan.
2. Replace the oil filter using the oil filter wrench.
3. Reinstall the drain plug and torque it to manufacturer specifications (usually around 20-25 ft-lbs).
4. Refill the engine with new oil using a funnel (refer to the owner's manual for correct type and capacity).

3. Inspect and Replace Transmission Fluid

Tools Required: Transmission fluid pump, socket set, oil catch pan.
Sub-steps:
1. Raise the vehicle securely using jack stands.
2. Locate the transmission fluid pan and remove the drain plug to drain old fluid.
3. Inspect the fluid for burnt smell or discoloration.
4. Replace the drain plug and refill with new transmission fluid using a fluid pump.
5. Check fluid level via dipstick (if applicable) and ensure it is within the proper range.

4. Inspect Belts and Hoses

Tools Required: Flashlight, screwdriver.
Sub-steps:
1. Visually inspect all belts for cracks, fraying, or glazing.
2. Check hoses for leaks, bulges, or soft spots.
3. Replace any damaged belts or hoses with OEM or equivalent parts.