mustangman0222

Will a misadjusted roller rocker make a hollow sounding noise near the valve cover?

mustangman0222

O.K. Now I think it is coming from the smog pump. I had a local mechhanic look at it, and he couldn't figure it out either. When we unhooked the belt the noise "seemed" to get louder. Any help would be nice.

mustangman0222

How about I put up a video where you can hear the noise. The noise seems to be coming from more towards the passengers side rear, but it is really hard to place. http://vimeo.com/4320402

AdderMk2

exhaust leak

mjr46

hard to tell anything from that video, but maybe as addermk2 states

AdderMk2

it really sounds like part of the smog system is blown out, but has a hint of exhaust leak to it

mustangman0222

I unhooked the serpentine belt myself , there is no difference in noise. I tightened a few loose bolts on the exhaust and O2 sensors and still no change in noise. It sounds as iif it is coming from the back side of the intake. Would a leaky intake cause a almost knocking sound?Thanks for any help you can give.

mjr46

no,leaking intake would cause a vaccum leak and car would have drivibility issues

mustangman0222

I hate to ask this, but could it be a connecting rod or push rod? I tried pulling plug wires to see if the sound decreased, which it did not. I'm hoping that rules out the connecting rod. But what about a push rod? What would that sound like?

calfroper_06

hard to tell froma vid!!! But from the sound of it, its an exhaust leak, probly from the smog system as adder stated