Skip the auto shop - Our mechanics make house calls

Q: Noise like a siren and turbo completely gone

asked by on

My car has approx. 94,000 miles. I purchased it pre-owned and at the time it had a whistling noise at lower speeds. The sound was like an ambulance siren. Now, the sound has ‘increased’ to what could be described as an air raid siren and the turbo is completely gone! The car will still drive, but there’s very little power and a loud whining noise. I can hear the loud noise even when the car is idling. There’s no smoke and the problems seem rather uneventful except for the loss of power and increase in noise. What is causing these noises and turbo problems?

The most likely cause of these symptoms of this are a failing turbo, large vacuum leak, or a damaged intake. This level of symptom damage to the engine can result from continued driving. If the turbo has failed, it can break and be sucked into the engine causing engine failure. This fault should be diagnosed as soon as possible. A qualified technician, such as one from YourMechanic, will be able to inspect the whining noise, diagnose the car’s loss of power, and perform any repairs required.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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. Noise like a siren and turbo completely gone

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: Is it possible to change the centre bore to fit new wheels? 2001 Audi A3

Hi there - you want to find hub-centric rings for your specific wheel-hub combination. These steel rings take up the excess space between the wheel hub bore and the hub itself, and allows the correct transfer of vehicle weight to...

Q: When I have the clutch in and turn steering wheel there is a noise.

Hi and thanks for contacting YourMechanic. Check to see if the belt and tensioner is working and the belt has no cracks. If there are cracks in the belt, then replace the belt. If the belt seems to be loose...

Q: Loss of power using turbo

It sounds like the vehicle is going into limp mode. This occurs when the powertrain control module (PCM) (also known as the electrical control unit) has determined there is an overboost condition. The computer disables the turbo to prevent damage...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...