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GM 6.0L gas engine & piston slap

Discussion in 'Trucks and Trailers' started by joed, Jan 25, 2003.

  1. joed

    joed LawnSite Bronze Member
    Messages: 1,198

    I am looking at acquiring a 2001 Chevy 2500 HD 4X4. The truck has 63 000 km (about 40 000 miles) and the asking price is $31 000 Canadian (about $20 000 U.S.) The body is in excellent shape and it was never used for heavy work or plowing. What concerns me about the truck is the engine. When I took it out for a test drive, I noticed two things:
    1. On start up, there was tick, tick sound for 15 seconds or so.
    2. The truck was very sluggish on the road, seemed to be hunting for gears and was struggling to get up small hills.

    Is this normal for this engine or does this engine have that dreaded piston slap condition that a lot of the GM trucks from 99-02 have?

    Can anyone help me out with this?
  2. Barkleymut

    Barkleymut LawnSite Bronze Member
    Messages: 1,117

    I have an 03 Silverado with the 6.0L.

    I have heard of the piston slap but don't know anyone who has experienced this.

    This engine should never struggle. It is leaps and bounds above the 5.2L Dodge I had before. Just thinking about this engine struggling to get up any hill makes me laugh.

    So to answer your question, yes something must be wrong with that truck.
  3. hdman

    hdman LawnSite Member
    Messages: 2

    I agree with Barklaymut.

    I also have an 02 2500HD with the 6.0L and it goes like crazy. I would recommend trying out another one just to see how it goes, because it sounds likes there is something wrong with the truck that you looked at.

    These are awesome trucks!!!

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