tapping noise from engine
Thread Starter
Pro
Joined: Jan 2009
Posts: 555
Likes: 15
tapping noise from engine
Ugh please tell me I don't have a bad lifter... The noise is always there, and it keeps in pace with engine RPM. I tried to take a video, but the camera mic is terrible...
The car is misfiring and throwing P0300 code.
The car is misfiring and throwing P0300 code.
Le Mans Master
Joined: Dec 2005
Posts: 8,550
Likes: 933
From: Communist Colorado
Pull your valve covers and look for a broken spring. Look closely! You should be able to find it also by sound. Its possible that you have a weak lifter, but more probable its a spring.
Racer
Joined: Apr 2010
Posts: 299
Likes: 1
From: Punta Gorda Florida
My 2002 has 31,000 miles. when I start it, I get a tick, tick tick, but once it warms up, it goes away, and doesn't come back until the engine is cold again. I'm assuming it's a lifter as well, but, would it have to be replaced if it pumps up after warmup ??
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Your's sounds like a lifter bleeding down when cold although I would not expect it yet with only 31k on the clock.
Advanced
Joined: Nov 2010
Posts: 64
Likes: 0
From: Waipahu Hawaii
Advanced
Joined: Nov 2010
Posts: 64
Likes: 0
From: Waipahu Hawaii
Did you get a chance to perform a leak-down test on the cylinder that had the offending valve spring? I'd imagine a bent valve (in the aforementioned cylinder) could throw the P0300 code as well.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Thread Starter
Pro
Joined: Jan 2009
Posts: 555
Likes: 15
