Q: Bad sounding engine noise, something is loose

asked by on

Whenever I have my 2007 Nissan Sentra in park, the engine makes a loose, rattling noise. I've had vehicles with knocking engines before and this was not a knock. It sounds like a motor mount or something attached to the engine rattling and sounds like the car is broken. It only has 36,000 miles, so I doubt it is in any danger mechanically, but the sound is annoying! Is this an urgent issue that needs attention?

The rattle is most likely coming from a faulty motor mount on the passenger side. The motor mount allows the engine to vibrate and hit metal to metal. Your vehicle should be put up on a lift while in park, and the rattle inspected. Replace the motor mount if needed. Check all other mounts as well and replace if needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Bad sounding engine noise, something is loose

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

Get a quote

What others are asking

Q: I have a 2002 nissan sentra 1.8 I'm trying to find the best place to purchase a front and rear catlyic converter

For the amount of the converters you will be best served purchasing the parts at local auto parts store so you have a place to go to get any warranty adjustments done. If you live in a state that regulates...

Q: Car starts but dies when the gas pedal is pressed

Uh oh - this isn't good. It is likely that some of the contaminated gas may still be clogging other fuel system components, and needs to be chemically cleaned out - fuel filter, fuel lines, fuel pressure regulator or injectors...

Q: My Brake pedal makes a humming when pressed

The brake caliper(s) could be failing to retract, thus setting up a harmonic during or after application of the brakes. Calipers should be rebuilt (or replaced) every 75,000 miles or so due to the harsh operating conditions they endure, principally...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.