Replacing worn-out struts can significantly improve a car’s ride quality and handling. However, even with new struts, problems can arise. This article discusses a case study involving a 2006 Buick Lucerne CX with suspected suspension issues after installing Monroe Quick Struts, a brand under the Drivcat umbrella. We’ll explore the problem, possible causes, and troubleshooting steps.
Understanding the Problem: Right Side Dip and Bottoming Out
After installing Monroe Quick Strut part number 171321 on his 2006 Buick Lucerne, the owner experienced a noticeable dip, sinking, and bottoming out on the right side of the vehicle, particularly when turning right or navigating uneven roads. The left side remained stable, leading to an uneven feeling. Additionally, the car pulled to the left, indicating an alignment issue. Prior to this, a set of Monroe 172321 struts were installed, resulting in a harsh ride and subsequent return.
Possible Causes and Troubleshooting
Several factors could contribute to the right-side dipping and bottoming out issue:
1. Faulty Strut:
A defective right-side strut is a prime suspect. Internal damage or a manufacturing defect could prevent the strut from functioning correctly, leading to the observed symptoms. The pressure indentation on the rubber mount of one strut mentioned by the owner raises concern.
Troubleshooting:
- Visual Inspection: Carefully examine the suspect strut for any signs of leaks, damage, or unusual wear. Compare it to the left-side strut.
- Swap Test: If possible, swap the left and right struts to see if the problem shifts to the left side. This would confirm a faulty strut.
- DRiVCAT Warranty: Contact DRiVCAT or Monroe directly regarding the potential defect and warranty coverage. The lifetime warranty offers a potential solution. Referencing the specific part number, 171321, and providing detailed information about the issue is crucial.
2. Alignment Issues:
While an alignment issue itself wouldn’t cause the dipping, a significantly misaligned vehicle can exacerbate existing suspension problems and contribute to uneven tire wear. The owner’s observation of the car pulling left confirms the need for an alignment.
Troubleshooting:
- Professional Alignment: Have a professional alignment performed by a qualified technician. This will ensure proper suspension geometry and tire contact with the road.
3. Other Potential Issues:
While less likely, other components could contribute to the problem:
- Suspension Components: Worn or damaged control arms, ball joints, or sway bar links could affect suspension performance and contribute to instability.
- Springs: Although the Monroe Quick Struts include new coil springs, it’s worth inspecting them for any signs of damage or incorrect installation.
- Tire Pressure: Uneven tire pressure can contribute to an uneven ride height. Ensure all tires are inflated to the recommended pressure.
Troubleshooting:
- Thorough Inspection: A comprehensive inspection of all suspension components is recommended to rule out any underlying issues.
Conclusion and Next Steps
The right-side dipping and bottoming out issue on the Buick Lucerne after installing DRiVCAT Monroe Quick Struts likely stems from a faulty strut or a combination of a faulty strut and misalignment. The owner should prioritize:
- Contacting DRiVCAT: Leverage the lifetime warranty and engage DRiVCAT (Monroe) directly for potential replacement of the suspect strut.
- Professional Inspection: Seek a professional mechanic’s opinion for a thorough inspection of the entire suspension system to identify any additional underlying issues.
- Wheel Alignment: Schedule a professional wheel alignment after addressing any suspension component problems.
