piston slap? something to be worried bout?...i know what it is and all but doesnt sound to good....should i be worried?
trevor
piston slap? something to be worried bout?...i know what it is and all but doesnt sound to good....should i be worried?
trevor
kn cai
dynatech supermaxx LT headers/cats
flowmaster thunder series exhaust
nelson performance tune 160* t-stat
full memphis audio minus alpine 10"sub
If you have piston slap you should be able to tell by the oil consumption. If your truck doesn't use any oil between changes, your problem may be a lifter not pumping up. If it does have piston slap, just don't drive it hard until it goes away. The piston warms up and expands to fit the bore. My vortec suburban has had this for 4 years and no trouble yet (140k). I drive it pretty hard on occasion towing and stuff.
I had this with the 5.3 that I removed with 90k. I should tear it down and mic the bores just to see what the tolerances are. I just assumed it was a lifter, but I have been wrong before...
Last edited by motorholmes; 03-11-2010 at 08:24 AM.
2000 Sierra rcss, LS6, xr265hr-15, HP Tuner, B&M, traction, cai, 2-4, 3.73 G80, Centerline, Pacesetters w/custom pipes and mufflers
These motors do use oil thought too.
Something about vaporizing and being sucked in through the intake......Pretty sure there was a post on it.
If it ain't broke don't fix it.
2013 CC 5.3
81 C10 LS1 project
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