HOSS Z28

57k running mobile 1 5-30 and have a slight loose knock or ping at low rpms. never touched the motor totally stock one owner.

JedWele

Ls1’s are very noisy to begin with it could be normal, but best thing to do is find someone In your area with a ls1 and compare the sounds.

bowe1632

iTrader: (1)

its a ping that you hear?

smokintiresz28

whats that mean

smokintiresz28

u know that ping in tech terms

smokintiresz28

can it be fixed or just live with it

smokintiresz28

hello any one there

1999Transamman

iTrader: (18)

Well both of mine have a slight ticking noise, but I dont know about a knock or ping. Does the engine stumble or hesitate when this is going on? Is this only when the engine is coming to temp or does this happen regardless of engine temp?

tilly

iTrader: (5)

Does this happen at startup? And does it go away after it warms up?

smokintiresz28

mainly when cold at low rpms

Transam295s

iTrader: (2)

Im guessing PISTON SLAP. its a known issue with the LS1. not going to hurt a darn thing its just there. Me and 2 my buddies found that when we switched to castrol syntech the noice went away. I no longer hear the slap that it had when i bought the car and i havent touched a thing. It may not have to do with oil at all but i think differently. Look up Piston Slap and you will find alot on it. Dont worry about it though if you say its at cold and low and then goes away.

smokintiresz28

yeah i have thought of going with castrol because my buddy works for there production company BP and has gave me the pitch on there products and once i went to mobil 1 it has now started burning oil.