Acceleration Noise
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 1,058
Likes: 5
From: Syracuse New York
Acceleration Noise
So When I am cruising slowly around 35 to 45 in 6th.
30 to 40 in 5th, etc, etc and I go to accelerate my car makes a major metallic sound. The engine runs smooth and the clutch does not slip. It sounds like the slight rocker/valve noise when you are idling and the car is cold. This is when the engine is warm and you are trying to accelerate in a real high gear. What could this be and is it potentially harmful? This is in a 2003 Z06.
30 to 40 in 5th, etc, etc and I go to accelerate my car makes a major metallic sound. The engine runs smooth and the clutch does not slip. It sounds like the slight rocker/valve noise when you are idling and the car is cold. This is when the engine is warm and you are trying to accelerate in a real high gear. What could this be and is it potentially harmful? This is in a 2003 Z06.
Burning Brakes
Joined: Nov 2007
Posts: 951
Likes: 2
From: Rochester MN
Sounds like pre-ignition... You need to run higher octane fuel or accelerate a bit easier and not lug the engine so much.
I have a bit of ping but I just back off a little on the "loud peddle" (accelerator)..
http://en.wikipedia.org/wiki/Engine_knocking
I have a bit of ping but I just back off a little on the "loud peddle" (accelerator)..
http://en.wikipedia.org/wiki/Engine_knocking
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 1,058
Likes: 5
From: Syracuse New York
I have had my car tuned by chuck cow. I always run 93 octane, but fuel companies are running their "winter mix" and there definitely is such a thing. Is this knocking what I am experiencing?
