why is my Toyota Corolla E170 (2013-2019) making a loud noise when accelerating?

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

571 words

Problem Statement

Learn how to diagnose and fix loud noise when accelerating in Toyota Corolla E170. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Exhaust System

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 working on the exhaust system.

Symptoms

•Loud noise that increases with acceleration
•Possible vibration felt through the steering wheel or floor
•Reduced acceleration performance
•Potential rattling or clunking sounds
•Engine misfiring or rough running

Diagnostic Steps

1
Inspect the exhaust system for any visible damage, loose components, or leaks.
2
Check for any error codes using an OBD-II scanner to identify potential engine issues.
3
Listen closely to the engine while revving to identify the noise source (e.g., front, rear, or under the vehicle).
4
Inspect the engine mounts for wear or failure.
5
Perform a visual inspection of the drive belts and pulleys for wear or looseness.
6
Check the transmission fluid level and condition.

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
•Wrench set
•Socket set
•Exhaust hanger removal tool
•Jack and jack stands
•Torque wrench
•Belt tensioner tool
•Funnel

Parts Required

•Exhaust pipe/muffler (if damaged)
•Engine mounts (if worn)
•Serpentine belt (if worn)
•Transmission fluid (if low)

Related Faults

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Diagnostic Steps

1
Inspect the exhaust system for any visible damage, loose components, or leaks.
2
Check for any error codes using an OBD-II scanner to identify potential engine issues.
3
Listen closely to the engine while revving to identify the noise source (e.g., front, rear, or under the vehicle).
4
Inspect the engine mounts for wear or failure.
5
Perform a visual inspection of the drive belts and pulleys for wear or looseness.
6
Check the transmission fluid level and condition.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a flat surface, and the engine is off and cool.
Disconnect the battery to ensure safety during inspection.

2. Inspect and Repair Exhaust System

Tools Required: Wrench set, socket set, exhaust hanger removal tool
Check the exhaust pipes and muffler for holes or rust. Replace any damaged sections.
Tighten or replace any loose mounting hardware or hangers.
If a leak is detected, use exhaust sealant or replace the affected section as necessary.

3. Address Engine Mounts

Tools Required: Jack and jack stands, torque wrench, socket set
Raise the vehicle and support it securely on jack stands.
Inspect engine mounts for cracks or excessive wear.
If damaged, remove the old mounts by unbolting them from the engine and chassis.
Install new mounts and torque bolts to manufacturer specifications.

4. Inspect and Replace Drive Belts

Tools Required: Socket set, belt tensioner tool
Visually inspect the serpentine belt for cracks or wear.
If damaged, loosen the tensioner and remove the belt.
Install a new belt, ensuring it follows the correct routing path and tension.

5. Fluid Check and Replacement (if necessary)

Tools Required: Transmission fluid dipstick, funnel, transmission fluid
Check the transmission fluid level using the dipstick. If low, add the appropriate type of transmission fluid.
If fluid is dark or has a burnt smell, consider a transmission fluid change.