Q: My car made a loud screeching noise and now smoke comes from under the hood and it smells. Also its not drivable

asked by on

When i turned on my car it sounds as if someone is hitting the gas. Then it made a really loud screeching noise. After that smoke started coming from under the hood and it had a strong smell. I have no oil or coolant leaks. It all just started happening yesterday.

My car has 16500 miles.
My car has an automatic transmission.

It sounds like you may have an issue with the transmission. A torque converter going bad makes the most noise when the engine is running and the transmission is in gear with the vehicle sitting still. If you move the shifter to the Neutral "N" position and the noise disappears, the case for a failing torque converter increases. Also, if the noise decreases as the vehicle begins rolling, the problem is almost definitely a failing torque converter. Once a torque converter begins screeching or rattling it is only a matter of time before the converter fails. Sometimes, when a torque converter fails, it literally explodes. When this happens, bits and pieces of metal are pushed into the transmission, which can cause catastrophic transmission failure.

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. My car made a loud screeching noise and now smoke comes from under the hood and it smells. Also its not drivable

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: My car cant get over 3500 rpm for some reason

Your issue sounds like a sensor problem. You should start by trying to pull codes from the car's computer, and see if there is any issues detected by the ECU. Diagnosis on the vehicle is going to take some process...

Q: Car started smoking while I was driving

Worst case scenario would be that the engine coolant is leaking, but generally coolant is not a clear fluid. This will cause smoking while driving if it is coolant. The fluid reservoirs for the various systems located in the engine...

Q: Battery saver mode

Hi There, Usually, this happens when there is a problem with the battery, such as a bad connection or potentially a weak battery. Since you have replaced the battery, this is not likely the case. This can also happen when...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...