Q: hissing sound when accelerating - 2014 Volkswagen Tiguan

asked by on

I recently bought a Tiguan with 9000 miles on it. Whenever I accelerate it makes a hissing sound. It's not like a turbo whistle, since it is turbo 4 cylinder. It sounds like 'ssss' for half a second like it's letting off steam in the air, kind of like a truck sounds. Does this sound serious? Should I take it to the repair garage?

Hello. The sound you are hearing is most likely a vacuum or intake manifold leak. The vacuum created by the engine is crucial for proper intake of fuel and air, as well as the combustion inside of the chamber. Now the intake manifold for that air coming in and being mixed with the fuel can also make a sound if there is a leak. The vacuum is sucking in the air and any hole or gap will likely make noise during that process. You will want to get this looked at. Depending on the severity of the leak, you will most likely see an increase of power. To have this diagnosed, a certified professional, like one from YourMechanic, can come to your car’s location to inspect the sound and let you know what needs to be repaired.

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. hissing sound when accelerating - 2014 Volkswagen Tiguan

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: What does the Brake light on the dash mean in a 2012 Toyota RAV4?

Your car is equipped with a number of important warning lights. The Brake light is there to warn you of a potential problem with the brake system. There are a couple of reasons that this light may come on: ...

Q: My headlights doesn't seem to work good.

The issue with your lights is the ballast resistor is not working properly. Ballast resistors are designed to monitor the amount of voltage to the headlights. If the lights are dimming out and then not working, then the ballast resistor...

Q: 2012 VW Tiguan with 33,440 miles and engine malfunction sensor came on and VW dealership quoted me $990 for decarboxylation and sa

Hello, thanks for writing in about your 2012 Volkswagen Tiguan. The Decarboxylation is necessary if you have a sensor reading that you need this done. Unfortunately I am not sure what your question is, however, if you'd like a second...

Related articles

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...
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...