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Home/Cars/Honda/Civic/10th Generation (2016-2021)/why does my Honda Civic make a loud noise when I accelerate hard

why does my Honda Civic make a loud noise when I accelerate hard

Honda Civic 10th Generation (2016-2021)

Severity: mediumDifficulty: medium2-4 hours
3 min read
548 words

Problem Statement

Learn how to diagnose and fix loud noise during hard acceleration in Honda Civic. Step-by-step guide with diagnostic procedures and repair instructions.

Component
Exhaust System
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before starting any repairs on the exhaust system.

Symptoms

  • •Loud noise when accelerating aggressively
  • •Possible vibrations felt through the chassis
  • •Increased engine RPMs without corresponding acceleration
  • •Exhaust smoke or odor (if applicable)
  • •Potential loss of power during acceleration

Diagnostic Steps

  1. 1Inspect the exhaust system for leaks or damage, including the muffler and catalytic converter.
  2. 2Check for any loose or damaged heat shields that may be vibrating.
  3. 3Scan for engine codes using an OBD-II scanner to identify any related fault codes.
  4. 4Inspect the air intake system for restrictions or loose components.
  5. 5Examine the engine mounts for wear or failure that could lead to excess movement.
  6. 6Test drive the vehicle to replicate the noise and determine its source (e.g., front, rear, or underbody).

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is on a flat surface and the engine is cool.
  • Disconnect the battery to avoid electrical issues during repairs.

2. Inspect and Repair the Exhaust System

  • Tools Required: Socket set, torque wrench, exhaust pipe cutter (if necessary)
  • Visually inspect the exhaust system for any cracks or holes. Pay special attention to the muffler and catalytic converter.
  • If any damage is found, remove the affected component:
    1. Use a socket set to unbolt the muffler or exhaust pipe.
    2. If the pipe is damaged, use an exhaust pipe cutter to remove the section.
  • Replace with new parts as needed, ensuring all connections are secure and properly torqued according to manufacturer specifications.

3. Address Loose or Damaged Heat Shields

  • Tools Required: Socket set, screwdriver
  • Inspect the heat shields around the exhaust system.
  • Tighten any loose bolts or clips holding the heat shields in place.
  • If a heat shield is damaged, replace it with a new one.

4. Replace Engine Mounts (if necessary)

  • Tools Required: Jack, jack stands, socket set
  • Safely lift the vehicle using a jack and secure it with jack stands.
  • Remove the bolts securing the engine mount to the engine and the frame using a socket set.
  • Replace with new engine mounts and torque the bolts to manufacturer specifications.

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
  • Torque wrench
  • Exhaust pipe cutter
  • Jack
  • Jack stands
  • Screwdriver

Parts Required

  • Muffler or exhaust pipe (if damaged)
  • Heat shield (if damaged)
  • Engine mounts (if worn)

Additional Information

Component

Exhaust System

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

7 items

Parts

3 items

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