GMC Sierra T1XX (2019-Present) making knocking noise when driving

GMC Sierra T1XX (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

534 words

Problem Statement

Learn how to diagnose and fix knocking noise in GMC Sierra T1XX. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the engine to cool before performing any repairs involving the engine components.

Symptoms

•Knocking noise when driving, especially over bumps or uneven surfaces
•Noise may increase with acceleration or turning
•Vibration felt through the steering wheel
•Possible clunking when shifting gears
•Uneven tire wear observed

Diagnostic Steps

1
Inspect the undercarriage for loose or damaged components.
2
Check the suspension components, including shocks and struts, for wear.
3
Test drive the vehicle to replicate the noise, noting conditions when it occurs.
4
Inspect the drivetrain, including the differential and CV joints, for play or wear.
5
Scan for error codes using an OBD-II scanner to identify potential engine-related issues.
6
Check tire pressure and alignment to rule out related noise sources.

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

•Jack and jack stands
•Torque wrench
•Socket set
•OBD-II scanner

Parts Required

•Replacement shocks/struts (if necessary)
•Replacement CV joint or axle (if necessary)
•Differential fluid (if servicing)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the undercarriage for loose or damaged components.
2
Check the suspension components, including shocks and struts, for wear.
3
Test drive the vehicle to replicate the noise, noting conditions when it occurs.
4
Inspect the drivetrain, including the differential and CV joints, for play or wear.
5
Scan for error codes using an OBD-II scanner to identify potential engine-related issues.
6
Check tire pressure and alignment to rule out related noise sources.

Solution

1. Preparation

Tools Required:
- Jack and jack stands
- Torque wrench
- Socket set
- OBD-II scanner
Ensure the vehicle is parked on a level surface and engage the parking brake.

2. Inspect and Replace Suspension Components

Sub-steps:
1. Raise the vehicle using the jack and secure it with jack stands.
2. Visually inspect the shocks/struts for leakage or damage.
3. Check for worn bushings or ball joints by grasping the components and checking for play.
4. If any components are damaged, remove them using the socket set and replace with new parts.
5. Torque new components to the manufacturer’s specifications.

3. Check and Service Drivetrain Components

Sub-steps:
1. Inspect the CV joints and driveshaft for any signs of wear or damage.
2. If a CV joint is found to be defective, remove the axle using the appropriate socket and replace it.
3. Check the differential fluid level and condition; replace if necessary.
4. Reassemble any components that were disassembled, ensuring all bolts are torqued to specifications.

4. Verify Tire and Alignment Condition

Sub-steps:
1. Inspect all tires for uneven wear patterns and proper inflation.
2. If uneven wear is noted, consider rotating or replacing the tires.
3. Check alignment using an alignment tool; adjust as needed to meet manufacturer specifications.