Jacobi Chee: replace the Knock Sensor what it does is it readjust it's own timing by it self
redFAKTION: Sounds like the lifters to me. I love that sound.
Arnold Baclig: try to put a restore oil treatment buy the V8 it might help your engine
Ronal Jimenez: I just bought 2012 Dodge Ram 3500 diesel 6.7 cummin sound most worthy than mine old Chevy
Ronal Jimenez: I still own this truck is just fine when warm up the noise go away
Blake Johnson: I should know I own one
Blake Johnson: Piston slap 6.0 vortecs are notorious for that after it warms up it will go away
dutchrolla907: I had that knock on my 2001 Silverado chained my torque converter from a 1500 to a 25000 sound was gone it wasn't my motor it was my torque converter
mrservemallday: mine dose this same crap!!!! what is it????? ony got 88K on it, 2006 silverado.
BustedWalletGarage: Bolt holes on flywheel are cracked
sonicthehog303: but no that sounds like normal engine noise i don't hear crap, but normal sound its a lot of metal moving around, of course it going to make some noise...... I'm not a freakin prius
sonicthehog303: its cause its a chevy....
IXBlackoutXI1: get some fuel injector cleaner and sea foam it. should reduce
George Felix: Typical noise on the chevy or GMC engines , but do not meant they are broken , ok , whit a sound like this I know so many Chevys running perfect over 200K .
mateollios 67: Almost all of these motors 2000to06 develop this knock.purchased my 2002 Chevy brand new 4.8 engine started knocking after 17k,now has197k miles and still runs strong.run nothing but synthetic mobile one.
Slac adjuster: LOL, no, you're the idiot, you with the POS GM junk with engine noise. My Hemi Ram runs like a champ. Great sentence structure too I might ad.
Slac adjuster: When, oh when will people learn...Mopar or no car. (or truck) Buy a Dodge Ram. Problem solved!!!!!
Chase Anderson: Every 6.0 I've heard makes that noise. Mine does it but it also has a tick in the engine. Anyone know what that may be? It's not a constant tick, just sporadic
TheBlackShadow270: Mine does the same. Many people say that's just what they do
Nurse Bewbies: I have never had issues with GM. Only with Ford. And their customer service sucks too.