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  1. #1

    Default lots of rattling

    In my 95 burb 5.7, Im getting a really bad rattling at 1600-1800 rpm's sounds like it's coming from the exhaust. The exhaust on it is pretty well toast, both the muffler and the pipes themselves. Kinda looks like swiss cheese under there. The noise sounds like it is coming front the catalytic converter or right under the front passenger floor. Does this make any sense? I know I need an exhaust but is this going to be more expensive then I originally thought?? Should I replace the muffler bearing??

    PS if one more thing breaks this week, I'm going to lose it. heres the list of stuff,
    1. Sierra water pump
    2. Furnace
    3. Cell phone
    4. Exhuast noise
    Dan
    1999 GMC Sierra 2500 350 vortec
    1967 Jeep M725 ambulance 230 tornado
    1990 Cherokee Limited- 3 inch lift on 33's
    ...and every one of em has issues

    If you have any questions or problems don't hesitate to send me or any other GMTC moderators a PM

  2. #2

    Default

    Have you looked at it? In a lot of cases, there are heat shields on the exhaust that try protect other things around it from getting too hot. These heat shields are usually spot or tack welded in place, and those welds break quite frequently. And then you get the rattling.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

  3. #3

    Default

    I shall goeth and checketh

    Edit: Heat shield looks like it could be the problem several tack welds were un-welded (rusted into non existence) So I ripped it off there. We'll see if that fixes the problem.

    Edit: Heat shield wasn't the problem, new exhaust is going on today. I can't take the fumes any more.
    Last edited by 95CTburb19; 02-09-2008 at 09:20 AM.
    Dan
    1999 GMC Sierra 2500 350 vortec
    1967 Jeep M725 ambulance 230 tornado
    1990 Cherokee Limited- 3 inch lift on 33's
    ...and every one of em has issues

    If you have any questions or problems don't hesitate to send me or any other GMTC moderators a PM

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