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  1. #1

    Default 2006 Chevy 2500 Duramax Hissing Air

    Hi everyone,

    I recently bought a 2006 Chevy 2500 Duramax and I've noticed that when I start accelerating, there is a hissing sound like a gas actuator or escaping air. As I take pressure off the brake, it will do the same thing but louder and seems to come from the bottom of the engine compartment. I'm pretty new to diesels and I just know that the newer models dont have the same sound. Any ideas?

    Thanks =)

  2. #2
    Master Mechanic Jimmeh's Avatar
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    Could be a bad boot on the turbo going from the turbo to the intercooler. Or it could be an exhaust leak. If you're feeling brave, I would recruit a friend or relative to rev the engine while you check around for the noise. I recommend taking it to a shop over that since it's not exactly safe, but that is what I would do.
    2005 Chevy Silverado W/T
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    Also have a 1992 Ford Ranger with a lot of stuff done to it. Currently waiting for a bit of a rebuild.


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  3. #3

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    Thanks Jimmeh, I'll be taking the truck over ASAP.

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