When I accelerate I hear a hissing sound?

Tiny
BONEJOHNSON6
  • MEMBER
  • 2006 BMW 750LI
  • 180,000 MILES
When I hit gas, I hear a hissing sound like air and it's running rough but cranks right up.
Friday, September 27th, 2024 AT 7:00 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,480 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.
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Friday, September 27th, 2024 AT 1:08 PM

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