my GMC Sierra T1XX (2019-Present) shakes when I accelerate, what's the issue?

GMC Sierra T1XX (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

531 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 systems.
•Allow the vehicle to cool before working on the engine components.

Symptoms

•Shaking or vibrations felt through the steering wheel and/or seat
•Increased noise levels during acceleration
•Potential loss of power or hesitation
•Unusual tire wear patterns
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect tire condition and balance; check for uneven wear or damage.
2
Perform a visual inspection of suspension components for wear or damage.
3
Check drivetrain components, including the driveshaft and universal joints, for any signs of damage or misalignment.
4
Scan the vehicle’s computer for error codes using an OBD-II scanner.
5
Inspect engine and transmission mounts for signs of wear or failure.
6
Test the wheel alignment to ensure proper adjustment.

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
•Jack
•Jack stands
•Tire balance machine
•Wrench set
•Socket set
•Torque wrench
•Alignment rack

Parts Required

•Tires (if damaged)
•Suspension components (if worn)
•Drivetrain parts (if necessary)
•Engine/transmission mounts (if worn)

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Diagnostic Steps

1
Inspect tire condition and balance; check for uneven wear or damage.
2
Perform a visual inspection of suspension components for wear or damage.
3
Check drivetrain components, including the driveshaft and universal joints, for any signs of damage or misalignment.
4
Scan the vehicle’s computer for error codes using an OBD-II scanner.
5
Inspect engine and transmission mounts for signs of wear or failure.
6
Test the wheel alignment to ensure proper adjustment.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery if working on electrical components.

2. Tire Inspection and Balance

Tools Required: Jack, jack stands, tire balance machine.
Remove the tires and inspect for damage, uneven wear, or foreign objects.
Balance the tires using a tire balance machine.
Reinstall the tires and torque the lug nuts to manufacturer specifications.

3. Suspension Component Inspection

Tools Required: Wrench set, socket set.
Inspect all suspension components, including control arms, bushings, and shock absorbers.
Replace any worn or damaged parts as necessary.

4. Drivetrain Component Check

Tools Required: Torque wrench, socket set.
Inspect the driveshaft for any visible damage or bending.
Check the universal joints for play or excessive wear and replace if necessary.
Ensure all components are securely fastened and torque to specifications.

5. Engine and Transmission Mounts Inspection

Tools Required: Wrench set.
Visually inspect engine and transmission mounts for cracks or deterioration.
If mounts are damaged, replace them with OEM or equivalent parts.

6. Recheck Wheel Alignment

Tools Required: Alignment rack (if available).
Perform a wheel alignment to ensure proper adjustment.
Test drive the vehicle to verify improvement.