Possible engine damage, there is a hissing noise coming from the hood, could it be a vacuum leak?

2003 ACURA TL
157,000 MILES • 6 CYL • 2WD • AUTOMATIC
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KAUSHAL JOSH PAI
  • MEMBER
  • 1 POST
My car is making a hissing noise coming from the hood. I drove today and had to hard brake and now having some big issues that are causing performance issues. Wanted to know can a vacuum leak cause these?
Aug 13, 2024 at 5:25 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

A vacuum leak can cause the engine to run differently. If it is a large enough leak, the engine may not start.

What is the vehicle doing? Is it possible for you to record the sound and upload it for me to hear?

Also, here is a link that explains how to locate/fix an engine vacuum leak. Check to see if you can find a possible issue.

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

Additionally, here is a link that explains common symptoms of a vacuum leak:

https://www.2carpros.com/articles/automotive-engine-vacuum-leak-symptoms

Let me know.

Joe
Aug 13, 2024 at 9:13 PM
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