Q: Squeak/screech noise, burning smell

asked by on

So I just bought this liberty last week and its having two problems that even with my experience and basic knowledge I cannot identify to save my life. When in idle (park/neutral) it makes a revolving noise that sounds similar to the noise bad brakes would make but much less so. When I engage it into drive the noise either stops or very very faintly keeps going, when the engine rpm's increase so does the noise to a constant drone of screeches. Now the noise does not sound blood curdling to the point I'd think my car will explode but it is something I am concerned about. The weird thing is that it is not coming from the engine area and can only be identified from coming somewhere around the front third of the vehicle (almost center). All fluids and belts are good and as stated I know its in that area. All fluids are good and have been checked except the differentials. Also I sometimes get a strange burning smell which can not be identified and is not from the engine area either.

My car has 150000 miles.
My car has an automatic transmission.

This may very well be related to the catalytic converter in your car. As you know, the catalytic converter is responsible for converting toxic combustion gases into less harmful gases to be dispelled into the atmosphere via your car’s exhaust system. When this is clogged or your car is running very rich (too much fuel), this can cause the catalytic converter to overheat which will eventually result in poor fuel economy and poor running conditions. You may also notice a burning smell as you describe. If this is the case, you should also likely have a Check Engine Light on which would indicate that the vehicle needs to be serviced. If you need help having this scoped out, a certified professional from YourMechanic can come to your car’s location to pinpoint the cause of the noise and the smell so that this gets repaired properly.

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. Squeak/screech noise, burning smell

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: Car idles rough, gas smell - 1988 Mercedes Benz 560SL

Check to see if the air filter housing has been sealed properly and that the mass air sensor has not been damaged by dirty air getting by the air filter assembly. If it has, then replace the mass air sensor...

Q: 2005 F250 5.4L Gas Will Not Start-HELP Please!

It sounds like you may be having an issue with the starter solenoid or the starter relay. The relay is overload protected, so if the system is trying to pull too much amperage, it will shut down. Also, if the...

Q: dashboard lights won't turn on

Hi there: This issue is typically caused by a blown fuse in the fuse box located on the driver side of the vehicle. It could also be due to a bad electrical relay that powers these lights. To know for...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...