Q: Front passenger side knocking sound while on driving pressing the gas. Could be on wheel or belt bearing. Goes when gas is pressed

asked by on April 30, 2017

The knocking sound only goes while pressing the gas while driving. In neutral or park it does not come out. Sounds like on the wheel but I may be wrong.

Car is making a noise Inspection $79.99 - $89.99 Get a Quote

It’s possible that it could be an axle or bearing, but it could be an engine noise, too, that is only apparent when the engine is under load driving the wheels (revving the engine in park does not load the engine). In extreme cases, it might be a loose motor mount that causes axle misalignment and that can cause noise. The noise you are describing sounds quite marked and so a quick, efficient way to resolve this is to request a vehicle noise diagnostic and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Car won't start

Try to move the steering wheel back and forth while turning the key. You may have bound up the steering lock when the vehicle was parked. If the key turns okay now, then the vehicle should start. If the steering...

Timing issues? Weird noise when accelerating.

Hi there. Although it's true that faulty or incorrect ignition timing will impact how smooth an engine runs, other issues like mass air flow sensors, O2 sensors and crankshaft position sensors can also cause similar symptoms. The best way to...

Put my GMC into gear and when I give it gas it just wines and won't move.

Hi there. Check the clutch to see if it is slipping. When a clutch slips, the engine will continue to operate but the transmission will not drive under a load. If the clutch is new and the noise is still...

Low coolant light on, coolant level fine

The level sensor may be at fault giving off a false reading and having the car turn on the warning light. This is an electrical problem in the case that an electrical component has failed. I suggest hiring an automotive...

Thumping sounds while driving over sharp bumps

The only part you did not mention (and the most likely cause of the problem) is the inside lower control arm bushings are bad. I would also check the steering gear mount bushings for excessive wear. Both of these bushings...

Service engine warning, MAF code and O2 sensor code, along with check suspension light are turned on

Hello, it sounds like you have quite a few things going on. I am going to do my best to break them down for you. First if the engine is very loud when idling and the belt has...

on/off humming buzzing noise on highway

Hey there, it looks like there was a problem with the link you added. However, from what you described, it sounds like the noise may be the cooling fan coming on and off as you are driving. Check the cooling...

Truck idled, ran rough, fluid streaming from motor

Hello there, thank you for asking about your car. It's highly unlikely that brake fluid entered the combustion chamber. The noise also would not be caused by using synthetic oil instead of conventional oil. As for the oil pressure, I'm...

Noticed rubbing noise from transmission after replacing bearings and lug studs.

Hello. This is tough to diagnose without hearing the sound specifically, as the transmission should not be rubbing on any other components in the vehicle. I would recommend checking the driveline components to be sure there are no loose or...

Related articles

Symptoms of a Bad or Failing Sliding Motor Door Assembly
Common signs include sliding doors not opening, noise coming from the door, and metal-to-metal grinding when opening and closing the door.
Why Does My AC Rattle When I Turn It On?
Common reasons why a car AC system makes a rattling noise is due to a failing AC compressor, worn serpentine belt, or worn out AC compressor clutch.
Symptoms of a Bad or Failing Cruise Control Vacuum Bleed Switch
Common signs include cruise control disengaging on its own or not disengaging when the pedal is pressed, and a hissing noise coming from the dash.