Lazy man's way to check for an exhaust leak
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  • 1 Post By Jeff R
The Classic Cadillac Forum Discussion, Lazy man's way to check for an exhaust leak in Past Cadillac Vehicle Discussion; Yep, the old "Leaf Blower Up the Tailpipe" trick. Figured it was an easier and cooler way to check. Jeff...
  1. #1
    Jeff R's Avatar
    Jeff R is offline Cadillac Owners Fanatic
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    Lazy man's way to check for an exhaust leak

    Yep, the old "Leaf Blower Up the Tailpipe" trick.
    Figured it was an easier and cooler way to check.
    Jeff
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    talismandave's Avatar
    talismandave is offline Cadillac Owners Master
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    Re: Lazy man's way to check for an exhaust leak


  4. #3
    Jaykeane is offline Cadillac Owners Member
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    Re: Lazy man's way to check for an exhaust leak

    nothing beats a length of (CLEAN) small diameter hose..
    carefully poke one end in your ear, and wave the other end near where you'd expect a leak.. (manifold flanges and joints).. works for vacuum leaks as well.. you'll really hear them.. (engine running obviously)
    I use a mechanic's stethoscope with the metal probe removed.. just the hose part.. look at one, and you'll see what i mean..
    the leaf blower idea scares me.. imagine all the pieces of rust and debris that you could be shooting past an open exh. valve and into the comb. chamber..

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    70eldo's Avatar
    70eldo is offline Cadillac Owners Connoisseur
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    Re: Lazy man's way to check for an exhaust leak

    Is the engine not running? You could have one blocking the exhaust intermittingly while you check from front to back while the egnine is running?

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    unautherized is offline Cadillac Owners Member
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    Re: Lazy man's way to check for an exhaust leak

    This reminds me of a joke where a guy said He was going to go blow up a bus, and came home with soot on his lips! LOL

  7. #6
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Lazy man's way to check for an exhaust leak

    This thread is straight out of "There I fixed it" pages.

  8. #7
    rodnok01's Avatar
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    Re: Lazy man's way to check for an exhaust leak

    Yea I don't think you want all that crap blowing back into the engine.... Slightly pressurizing would be one thing but that's a whole different critter.

  9. #8
    Jeff R's Avatar
    Jeff R is offline Cadillac Owners Fanatic
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    Re: Lazy man's way to check for an exhaust leak

    No, the engine was not running. Turns out the leak is from the slip joint at the manifold. Too hot to reach up in there when it was running and with the fan blowing it was hard to tell where things were coming from.
    If you'll notice, it was a cordless blower. Battery was low so it wasn't full pressure blowing backwards.
    Jeff

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