my Toyota Corolla E170 (2013-2019) makes a knocking noise when driving

Toyota Corolla E170 (2013-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

552 words

Problem Statement

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

Affected Component

Suspension

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical components.
•Ensure the engine is cool before inspecting engine mounts.

Symptoms

•Knocking noise when driving, especially over bumps
•Vibration felt through the steering wheel
•Clunking sounds during acceleration or deceleration
•Unusual tire wear patterns
•Loose steering or handling issues

Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, shocks, and control arms.
2
Check for loose or damaged engine mounts by visually inspecting and shaking the engine assembly.
3
Examine the drivetrain for any issues, including the CV joints and axle shafts.
4
Perform a road test to replicate the noise and note conditions (e.g., speed, road surface).
5
Use a stethoscope or mechanic's listening device to isolate the source of the knocking noise.

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

•Socket set
•Torque wrench
•Jack and jack stands
•Stethoscope
•Pry bar

Parts Required

•New struts/shocks (if worn)
•Control arm bushings (if worn)
•CV axle assembly (if damaged)
•Engine mounts (if damaged)

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Diagnostic Steps

1
Inspect the suspension components for wear or damage, including struts, shocks, and control arms.
2
Check for loose or damaged engine mounts by visually inspecting and shaking the engine assembly.
3
Examine the drivetrain for any issues, including the CV joints and axle shafts.
4
Perform a road test to replicate the noise and note conditions (e.g., speed, road surface).
5
Use a stethoscope or mechanic's listening device to isolate the source of the knocking noise.

Solution

1. Preparation

Gather tools and materials.
Tools Required: Socket set, torque wrench, jack and jack stands, stethoscope, pry bar.
Ensure the vehicle is on a level surface and the parking brake is engaged.

2. Inspect and Replace Suspension Components

Step 1: Lift the vehicle using a jack and secure it with jack stands.
Step 2: Remove the front wheels for better access to the suspension.
Step 3: Inspect struts and shocks for leaks or damage, and replace if necessary.
- Replacement: Use a socket set to remove the strut assembly bolts, replace with new struts, and torque to manufacturer specifications (typically around 50-60 ft-lbs).
Step 4: Check control arms and bushings for wear. Replace if any cracks or excessive play are found.
- Replacement: Use a pry bar to remove old bushings, install new ones, and torque to specification.

3. Inspect and Replace Drivetrain Components

Step 1: Check the CV joints and axles for any signs of damage or wear.
Step 2: If the CV joint boots are torn or the joint shows excessive play, replace the axle assembly.
- Replacement: Remove the axle nut, detach the control arm, and pull the axle out of the transmission, then install the new axle in reverse order.

4. Secure Engine Mounts

Step 1: Inspect engine mounts for cracks or deterioration.
Step 2: If damaged, replace the engine mounts.
- Replacement: Remove the securing bolts and lift the engine slightly with a jack to replace the mount. Torque the new mount bolts to specification.