NOLAGSS

iTrader: (2)

so i have noticed this funny sound when i fist start my car... sounds like pinging but its only when its cold. once the engine warms up it goes away. im using 5-w30 valvoline syntech. didnt bother me that much till today.. i changed my oil and have a buddy rev the engine ever so slighty till i could pin point the sound..... hears were it gets interesting, right by the timing cover at about 2-3k it sounds like rocks in the engine. but only between these rpms. my thought is timing chain guides idk please help any input... mods in my sig

Dowden

I had a similar noise, when the car was started cold then once it warmed up it went away, I brought it to the dealership and they said there was a leak in the exhaust manifold gasket! and when the car warmed up the metal expanded and closed the hole. I Had it replaced and the noise is gone. Im not sure if its the same problem just thought Id throw it out there.

NOLAGSS

iTrader: (2)

yeah mine almost sounds like an exhaust leak as well and its coming from that area..... i only have 50k on the car so idk what the other sound could be

NOLAGSS

iTrader: (2)

so i talked to a technician at work today and they said its a belt chirp.. makes sence because at times i only hit 9-10 psi so i believe i have belt slip..

Flatgod

iTrader: (1)

Everything you have described sound like what happened to my car. Exhaust leak. For the longest timed I thought it was a belt. The gm tech thought it was a belt. But in the end it was an exhaust leak.

HunterKiller89

iTrader: (1)

you would only experience belt slip under WOT. sounds to me like your saying you hear the noice only on a cold engine after startup, which i assume means you're hearing it at idle.

NOLAGSS

iTrader: (2)

yes i hear it at idle and in first gear when i take off but like i said its only when the engine is cold

NOLAGSS

iTrader: (2)

yes i hear it at idle and in first gear when i take off but like i said its only when the engine is cold

NOLAGSS

iTrader: (2)

yes i hear it at idle and in first gear when i take off but like i said its only when the engine is cold

NOLAGSS

iTrader: (2)

well now it does it every time i start the car almost... if i let it sit for 20-30 minutes and start it up the noise is there.. its getting louder and scaring me know. i held a pry bar up to my manifold and listening through the handle its loudest on the manifold.. sounds like a crazy idea but try it the prybar actually magnifies noise. but is 20-30 minutes long enough for the gasket to cool down and shrink???

ssyellow

http://www.youtube.com/watch?v=CYDsci-EBLg

meh? lifters...

NOLAGSS

iTrader: (2)

yep theres the noise... so what now