what is piston slap
Thread Starter
On The Tree
Joined: Dec 2005
Posts: 152
Likes: 0
From: ALACHUA, FL
what is piston slap i hear a tapping noise when the engine is cold. the engine only has 18000 miles on it. the noise fades away after it warms up. could this be piston slap and if so how do i fix it? or how do i diagnose this problem to see exactly what it it making the noise?? 
Sounds like piston slap but doesn't mean it necessarily is. Some LS1's are known to have this problem even w/ low miles. Piston slap is where the clearance b/w the piston rings and cylinders is too much when cold so the piston doesn't ride snug up and down in the cylinder when the metal is cold. Once it warms up the piston expands radially to become slightly larger and fill the cylinder more snugly. What type of oil are you using? Might help to go w/ a thicker oil?
Thread Starter
On The Tree
Joined: Dec 2005
Posts: 152
Likes: 0
From: ALACHUA, FL
i just purchased the car 2 months ago from a dealer in tampa. i dont know what kind of oil was in it when i got it but i just changed it 3 weks ago to mobile 1 synthetic 10w30. it always done it since day one
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
