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: 8,575
Likes: 961
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
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
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
Thread Starter
Pro
Joined: Jan 2009
Posts: 555
Likes: 15
