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chevy 2500hd pop/ping noise

Discussion in 'Chevy Trucks' started by mickman, Jan 18, 2005.

  1. mickman

    mickman Senior Member
    Messages: 118

    Has anyone noticed a loud ping or popping sound after you shut off truck?
    It sounds like gas tank expands, or maybe it's exhaust.

    I own 2-2500hd's and the other one never made that sound. A couple of people have asked me what the noise is, kinda sounds like a gas can expanding in the heat.
  2. William B.

    William B. Senior Member
    from S.E. IA
    Messages: 979

    My 01 does the same. From what I have read it is the heat sheild around the muffler or the muffler it self, I don't remeber exactly that is making the noise. Nothing to worry about.

  3. mickman

    mickman Senior Member
    Messages: 118

    thanks. We were at the dealers today & I asked, & he said it was exhaust.
  4. drplow

    drplow Senior Member
    Messages: 174

    my 02 gmc does it too. really loud when its cooling off. this problem has already been noted and hopefully they fixed it in the later models.