Honda Tech Tip: Diagnosing Knocking Sound Coming from the Front Suspension

Honda Tech Tip: Diagnosing Knocking Sound Coming from the Front Suspension

Vehicle owners may complain of a knocking coming from the front suspension while driving over a bumpy road. This can be caused by the damper shaft nut not being tight enough. To correct this problem, loosen and retorque the damper shaft nut to the appropriate torque specification.

Vehicles:
• 2002 Civic Si — All;
• 2003 Civic Si — from VIN SHHEP3…3U400001 thru SHHEP3…3U406119; and
• 2003 CR-V — from VIN SHSRD6…3U100001 thru SHSRD6…3U106587; from VIN SHSRD7…3U100001 thru SHSRD7…3U141932.

Symptom:
Knocking coming from the front suspension while driving over a bumpy road.

Probable Cause:
The damper shaft nut isn’t tight enough.

Corrective Action:
Loosen and retorque the damper shaft nut to the appropriate torque specification.

Diagnosis:
Test drive the vehicle over a rough road while turning left or right. Note any noise and the side(s) it comes from.

Repair Procedure:
1. Hold the damper shaft with a 6 mm hex (Allen) wrench, and loosen the damper nut 1/2 turn with a 17 mm crowfoot and ratchet. See Figure 1.
2. Hold the damper shaft with a 6 mm hex (Allen) wrench, and use a torque wrench with a 17 mm crowfoot to torque the damper shaft nut to 49 Nm (36 lb-ft).
3. Repeat steps 1 and 2 for the other side, if necessary.
4. Test drive the vehicle to confirm that the noise is gone.

Technical service bulletin courtesy of Mitchell 1.

For additional information, visit www.mitchell1.com.

You May Also Like

We Want To Know: Where Do You Buy Your Parts?

Your honest and anonymous responses today will help us provide better information to you in the future.

As important as which parts you select may be the question of where you find them. We're interested in finding out where shops get the parts that go into their repairs and would appreciate your comments.

From time to time, ShopOwner conducts surveys to help us guide our editorial direction and help our partners determine what's important to you, our readers. These are very important studies, because they allow you to respond anonymously and honestly. We need your help!

Do EVs Require Special Brake Pads?

Proper brake pad selection is crucial for EVs to ensure consistent stopping power and long pad life.

Five Tips for your Next Wheel Bearing Job

These practical tips are designed to save you time and frustration, ensuring a smooth, noise-free outcome for your customers.

Sun Auto Tire & Service Acquiring Caliber Auto Care

The company is acquiring 33 Caliber Auto Care locations throughout the state of Texas.

Steering Angle Sensor Service

Ninety percent of the time when a steering angle sensor code is active, it means the sensor needs to be calibrated.

Other Posts

Honda Launches Fuel Cell Electric Vehicle in Ohio

Production of the 2025 CR-V e:FCEV fuel cell EV begins at Performance Manufacturing Center in Marysville, Ohio.

Schaeffler Showcases Hydrogen Electrolyzers and Fuel Cells

Schaeffler also is demonstrating its progress toward the commercialization of green hydrogen.

Bosch Releases 87 New Part Numbers in June

Bosch’s new part numbers cover 318 million vehicles in operation across North America.

Educate Your Customers Utilizing AI

Discover how to generate quick, accurate explanations for repair orders and estimates, boosting your shop’s credibility and customer trust.