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?

A: The most likely cause of these symptoms of ...

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.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Control arm wishbone cracking

Hello. The inspection of the lower control arms are accurate, but what is cracking is actually the bushings in the wishbone's lower control arms. This is a common problem with Audi cars. A certified technician can help you with the...

Q: Buzzing noise under dashboard

Hello. A buzzing noise that goes up and down with engine RPM is usually caused by an issue with the alternator. It is either caused by it being shorted internally, it being loosely connected, or a bad ground connection to...

Q: Jdm bg5 ej20 twin turbo boost issues

Oil in the intercooler is generally a sign that a turbo seal has let go. Most likely one or both turbos are due for replacement or rebuild. Have a professional come look into the Check Engine Light code and smoke...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.