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Audible exhaust leak

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by Treadnmud, Jun 26, 2012.

  1. Treadnmud

    Treadnmud New Member

    Under acceleration I can hear what sounds like an exhaust leak around the bell housing, back of the engine area. I have rolled all around the bottom of my burb checking the exhaust and I haven't found anything. I am thinking that woven fiberglass covered pipe on the driver's side that runs from the back of the exhaust manifold to the front of the intake manifold maybe the culprit. what else could it be???
  2. Ape

    Ape New Member 100 Posts

    Have you checked the flange that connects the ehaust to the manifold?
  3. Treadnmud

    Treadnmud New Member

    Oh yeah, that was what I first thought that it was. It's okay.
  4. Ape

    Ape New Member 100 Posts

    Could be a crack in the intake manifold. I had one on the drivers side a while back that was driving me crazy. I checked everything but the manifold for a couple of months. Finally one day I noticed the crack and it surprised me at how obvious it was once I knew it was there.
  5. 84fiero123

    84fiero123 New Member Platinum Contributor 1000 Posts 100 Posts

    Take a short peace of garden hose and try crawling under there with it to your ear, move the other end to anywhere you think there might be a leak. You will hear it.

    Steve

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