What causes hissing or spraying noise and loss of power?

Tiny
LANITA ELLIOTT
  • MEMBER
  • 2004 MITSUBISHI GALANT
  • 200,000 MILES
Every time I push gas pedal my car has no power and it makes a loud hiss or spray noise. Can somebody tell me why it does this?
Monday, August 23rd, 2021 AT 1:47 AM

1 Reply

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

It's hard to diagnose a sound a vehicle makes without seeing-hearing it in person. What we ask people to do is use your cell phone to record the noise you're experiencing and upload it here. To me it sounds like you might be having a vacuum leak. Here is a tutorial showing how to look for a vacuum leak:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Let us know if you can upload a video of this sound and we'll go from there. Hope this helps and thanks for using 2CarPros.
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Monday, August 23rd, 2021 AT 2:37 AM

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