Knocking Sound in Car when Parked

It can be a little bit unnerving when you leave your car parked and hear a knocking sound coming from the engine. It’s probably not something you’re used to, but it’s actually just your car knocking against the curb or wall. There are many reasons your car might make this sound, but the most common one is that it needs to be cranked down to its lowest level in order to start.

Causes and Solutions

If you hear a knocking or knocking sound coming from your car when it’s parked, there are a few different potential causes. Below are several solutions to help fix the problem.

The first thing to check is if your car has any loose or worn-out parts. If you hear the knocking noise when you move the car, it’s likely that one of the panels on the underside of the car has come loose and is making the noise. You can fix this by tightening any loose screws or bolts with a wrench, and then re-attaching the panel with adhesive or screws.

If you don’t think that there are any loose parts, then it’s possible that something is hitting or rubbing against the car while it’s parked. The most common cause of this is something like a rock or tree branch caught in between the bumper and the body of the car. To fix this, you’ll need to move whatever is causing the problem and then seal up any openings with duct tape or silicone sealant.

Test Procedures

If you are experiencing a “knocking sound” when your car is parked, there is a good chance that you have a suspension issue. This knocking can be caused by many things, but the most common culprits are worn or broken suspension components. If you notice this knocking noise and it’s causing problems with your car’s performance or handling, it’s important to take action and have the problem fixed. Here are some tips for diagnosing and fixing your car’s suspension issues:

See also  Will Honda Refinance My Car

1. Make sure all of the car’s suspension components are properly lubricated. Worn or dry parts can cause noises and poor performance.

2. Use a diagnostic tool to check for worn or broken components. This can help identify the problem before it causes further damage.

3. Have the suspension components replaced if they’re found to be defective or worn out. This will restore your car’s performance and eliminate the knocking sound.

Results and Discussion

The knocking sound that some drivers hear in their car when parking can be caused by the suspension or the drivetrain. If the knocking is coming from the suspension, it may be due to a worn or defective strut or spring. If the knocking is coming from the drivetrain, it may be due to a loose or damaged transmission belt. In either case, fixing the issue will usually require a repair technician.


Have you ever noticed that your car seems to make a knocking sound when it’s parked? This is actually the sound of the suspension settling back into its normal position after being compressed by the weight of the car. The knocking noise usually goes away within a few minutes, but if it persists or becomes louder, it might be time to have your suspension inspected.

DynoCar is the best place to find information on all things cars, whether it be a car buying guide or how to change your oil. We’ve made finding and staying in touch with car information easy and fast.



About Us



DynoCar - All About Cars

(440) 999 3699

590 Monterey Blvd San Francisco, CA 94127

Information contained herein is for informational purposes only, and that you should consult with a qualified mechanic or other professional to verify the accuracy of any information. shall not be liable for any informational error or for any action taken in reliance on information contained herein.