Tapping Noise
Thread Starter
Racer
Joined: Feb 2010
Posts: 375
Likes: 0
From: South Carolina
Tapping Noise
OK - I'm sure I'm opening a thread that's been beat to death but I can't find much when I search -
When my '02 is first started I hear a light tapping noise for a minute or so then it goes away. I'm assuming this is light valve tap until the oil circulates but want to make sure there's not something happening that I need to look at....
Again, don't mean to beat a dead horse but....
When my '02 is first started I hear a light tapping noise for a minute or so then it goes away. I'm assuming this is light valve tap until the oil circulates but want to make sure there's not something happening that I need to look at....
Again, don't mean to beat a dead horse but....
Burning Brakes
Joined: Dec 2006
Posts: 1,109
Likes: 1
From: Clayton CA
I'm pretty sure it is normal, though I am by no means an expert. I thought the same thing when I first got my '99 coupe. Searched the forums and found the LS1 can be a noisy engine upon startup. Funny, all the noise went way when I installed my GHL Bullet cat back exhaust.
Thread Starter
Racer
Joined: Feb 2010
Posts: 375
Likes: 0
From: South Carolina
I'm pretty sure it is normal, though I am by no means an expert. I thought the same thing when I first got my '99 coupe. Searched the forums and found the LS1 can be a noisy engine upon startup. Funny, all the noise went way when I installed my GHL Bullet cat back exhaust.
Melting Slicks
Joined: Jan 2009
Posts: 3,181
Likes: 286
From: Puyallup Washington
When first started my Z06 makes noise for the first minute or so. Then it goes away. I have been informed, through the forum, that this is piston slap and is normal in a Z06. I have a Borla exhaust and it did not fix the problem. I would suggest turn the radio on really, really loud and the problem will be fixed.
CF Community Team
Joined: Oct 2004
Posts: 19,363
Likes: 5,243
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
My 02 does it for about a minute. My 98 before this one also did it. Pretty normal as long as it goes away when warmed up. A little piston slap is OK
Thread Starter
Racer
Joined: Feb 2010
Posts: 375
Likes: 0
From: South Carolina
Safety Car
Joined: Jan 2007
Posts: 4,225
Likes: 0
From: The Great Truth: "There ain't no free lunch"
St. Jude Donor '08-'09-'10-'11
Many GM engines experience noise like this.....the valve train tends to be noisy (sewing machine sound) or piston slap (goes away as engine heats up)....From posts, seems to cause no harm
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
