engine noise

  1. J

    I'm Baffled! There is a rattle under hood, while in Drive, at idle (no load). Goes away under the slightest load.

    Hi Gang - my 2017 Yukon Denali has 81k miles. Today, she presented me with a new puzzle. While sitting still, transmission in Drive, brake applied and not moving, at idle; there is a new rattle under the hood. That rattle goes away when I apply the slightest load. To me, it sounds a little...
  2. D

    Truck making weird noise when accelerating

    Hoping to get some help. I have a 98' GMC 4x4 k1500 Sierra 5.7liter. Engine has been completely overhauled and was working like a charm. Has 110k miles and is now making a funky noise during acceleration. When given gas in Drive, the truck makes a... Ch ch ch ch ch sound. Only in drive and...
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