When I accelerate I hear a hissing sound?

2006 BMW 750LI
180,000 MILES
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BONEJOHNSON6
  • MEMBER
  • 1 POST
When I hit gas, I hear a hissing sound like air and it's running rough but cranks right up.
Sep 27, 2024 at 7:00 AM
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STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,354 POSTS
This could be a clogged exhaust system or a vacuum leak, can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. This is so we can go in the right direction to help fix the car.
Sep 27, 2024 at 1:08 PM
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