Help Weird engine noise
Thread Starter
Staging Lane
Joined: Jan 2012
Posts: 60
Likes: 0
From: Tampa/ Gainesville
Help Weird engine noise So i just started up the camaro and the engine at idle is making a slight knocking sound . its coming from the left side facing the car . sounds like its under the valve cover. any idea what this could be?
could it be the lifters tapping?
could it be the lifters tapping?
Thread Starter
Staging Lane
Joined: Jan 2012
Posts: 60
Likes: 0
From: Tampa/ Gainesville
TECH Enthusiast
Joined: Feb 2009
Posts: 661
Likes: 0
Sorry I can't see the signature on my phone. Judging by the mods you listed the valvetrain is the likely culprit. Does it change sound with rpm? Try taking a long screw driver and touch it to your valve cover then put your ear to it. That may give you an idea of what cylinder it's on.
Thread Starter
Staging Lane
Joined: Jan 2012
Posts: 60
Likes: 0
From: Tampa/ Gainesville
Sorry I can't see the signature on my phone. Judging by the mods you listed the valvetrain is the likely culprit. Does it change sound with rpm? Try taking a long screw driver and touch it to your valve cover then put your ear to it. That may give you an idea of what cylinder it's on.
409 rwhp
374 rwt
yeah it the amount of taps per second increases with rpms increasing. do i need to take it to a shop or is there something i can try to do
could it be a header leak ?
TECH Enthusiast
Joined: Feb 2009
Posts: 661
Likes: 0
It could be an exhaust leak. Its just hard to say without a video or hearing it in person. Try this you said its on the passenger side right? Crank the car up and pull off one spark plug wire at a time. When the tapping you hear goes away there you will know what cylinder its on. If the tapping doesn't go away but only changes tone then its most likely exhaust leak.
Thread Starter
Staging Lane
Joined: Jan 2012
Posts: 60
Likes: 0
From: Tampa/ Gainesville
It could be an exhaust leak. Its just hard to say without a video or hearing it in person. Try this you said its on the passenger side right? Crank the car up and pull off one spark plug wire at a time. When the tapping you hear goes away there you will know what cylinder its on. If the tapping doesn't go away but only changes tone then its most likely exhaust leak.
