why does my GMC Sierra T1XX (2019-Present) shake when I accelerate

GMC Sierra T1XX (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

530 words

Problem Statement

Learn how to diagnose and fix shaking during acceleration 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

•Disconnect the battery before working on electrical components or drivetrain.
•Ensure the vehicle is securely supported on jack stands before working underneath it.

Symptoms

•Vibrations felt in the steering wheel or throughout the vehicle during acceleration
•Increased noise from the drivetrain or suspension
•Uneven tire wear
•Steering wheel misalignment
•Potential loss of power or hesitation during acceleration

Diagnostic Steps

1
Inspect tire condition and pressure to ensure they are balanced and properly inflated.
2
Check for visible damage or wear on suspension components such as bushings, control arms, and shocks.
3
Perform a wheel alignment check to identify any misalignment issues.
4
Inspect the driveshaft and CV joints for any signs of damage or wear.
5
Scan the vehicle's onboard computer for any trouble codes that may indicate underlying issues.

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

•Tire pressure gauge
•Tire changer (if replacing tires)
•Jack and jack stands
•Socket set
•Torque wrench
•Wheel alignment equipment

Parts Required

•New tires (if necessary)
•Replacement suspension components (if worn)
•Driveshaft or CV joints (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect tire condition and pressure to ensure they are balanced and properly inflated.
2
Check for visible damage or wear on suspension components such as bushings, control arms, and shocks.
3
Perform a wheel alignment check to identify any misalignment issues.
4
Inspect the driveshaft and CV joints for any signs of damage or wear.
5
Scan the vehicle's onboard computer for any trouble codes that may indicate underlying issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the battery for safety.

2. Inspect and Replace Tires

Sub-steps:
1. Check tire pressure using a tire pressure gauge; inflate to recommended PSI if necessary.
2. Visually inspect tires for bulges, cracks, or uneven wear.
3. If any tires are damaged, replace them with new tires of the same size and specifications.
Tools Required: Tire pressure gauge, tire changer (if replacing tires)

3. Check and Replace Suspension Components

Sub-steps:
1. Raise the vehicle on jack stands and remove the front wheels.
2. Inspect suspension components for wear or damage; specifically check bushings and control arms.
3. Replace any worn-out components with OEM or high-quality aftermarket parts as necessary.
Tools Required: Jack and jack stands, socket set, torque wrench

4. Perform Wheel Alignment

Sub-steps:
1. Take the vehicle to a professional alignment shop or use an alignment kit.
2. Adjust the camber, caster, and toe settings according to the manufacturer’s specifications.
Tools Required: Wheel alignment equipment (if doing in-house)

5. Inspect Driveshaft and CV Joints

Sub-steps:
1. Inspect the driveshaft for any visible damage or play at the joints.
2. If damaged, replace the driveshaft or CV joints as necessary.
Tools Required: Socket set, torque wrench