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?
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: Noise in pulley area

Your serpentine belt may be due for a change. Over time the rubber in the belt can get worn or glazed which will cause the belt to squeak. It is also possible that a bearing in one of the drive...

Q: Turbo losing power

If the Turbo bearing is starting to go bad then the turbo may be noisy. The turbo could need to be inspected for fin damage or a binding waste gate operation. Also, the intake tubes would need to be checked...

Q: All of the dashboard lights/icons came on and everything blacked out causing the car to shutdown completely while driving.

Hi there. The dash lights coming on and vehicle shutting down are, most likely, related to a charging system problem. It's fairly common for all the dash lights to come on with no alternator output, low voltage can cause unusual...

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...
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...
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.