weird vibrations

Discussion in 'General Chevy & GM Tech Questions' started by cocacolamanjosh1984, Sep 14, 2008.

  1. cocacolamanjosh1984

    cocacolamanjosh1984 New Member

    My 04 tahoe4.8l, has gotten an odd vibration at 1300-1500 rpm through all the gears. It sounds like metal vibrating against other metal. I have checked both converters and can't get them to rattle also went along the exhaust system, no luck. It only does it from 1300-1500rpm then it is quite no problems other than this. please help
  2. 95CTburb19

    95CTburb19 Epic Member 5+ Years 1000 Posts

    check the heatshield on your muffler, its usually tack welded on and these welds can break after a while. Mine 95 did that and it was the cat. I ordered a new cat and the tranny went! so that fixed my problem.

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