I pluged all the holes in my exhaust system but i am still getting a ticking noise. anybody have any suggestions?

 

Just listen to where the noise is coming from.

Maybe some injectors tick action going on?

 

i have been told it was the EGR valve about to crap out on me Do you think that is the case? also when i unplug the EGR from the vacume hose it does not make the car run any differently. but noise is still there.

 

rockers
injectors
still have exhaust leak
pistons hitting cylinder walls
any pullys with to much shaft play


I highly doubt its the EGR valve, I have never heard of a UFO style egr ticking. New digital ones, Yes.

 

I second the loose rocker arm.

 

heh i just found out that there is supposed to be a gasket in the spot where the Y pipe meets the manifold i thought there wasint supposed to be one cause it wasn't there when it was replacing gaskets I don't think the noise would come from the engine as it has less than a thousand miles on it. I hope

 

It's not really a gasket; it's a cast-iron donut-shaped thing.

Well... it's a cast-iron donut on MY car. This is the second post I've seen in two minutes that has talked about having a gasket there! I'm confused...? I've never seen a gasket in that spot.

 

By strict definition that metal doughnut is a "gasket", but not really what I'd call a gasket. That would have to be some thickass gasket material heheh. Of course that sparks some curiousity on the gasket comments on my part too...


-Bud

 

it is the doughnut that i was refering to but that wasn't my problem it is that the Y pipe that is currently on the car does not mate properly to the engine so when i put the doughnut in it just leaks past the top edge. i would put the one on my car that is from the donor car that the engine came from but my exhaust has been welded together. now i have to replace the whole thing

 

Maybe not. If you have access to a torch then heat the crap out of the pipe about half way around on the rise after the bend leading to the manifold on the side that you need to move in a large diamond shaped pattern. Just be careful not to burn through keep the torch moving. Let air cool rexamine fit and repeat as neccessary. Do not cool with water. Don't freak out when the pipe bends away from where you want it to when hot... it will bend away when you heat it and pull in much more when cool. If there are no holes as you say once lined up it should be leak free.

 

I have a ceramic type dounut in my car with wire mesh insie of it. When you tighten up the Y pipe, it forms to it and does not leak this way at all. Much better then that ceramic crap

 

i got one of those to that is how badly the Y pipe is ****ed up

 

Camaro350man, where'd you find those?

For those of us with the cast iron pieces; if you take them out, hone the inside with a metal file (meaning, a file meant for metal, not a file meant for wood) to remove the sharp ridge in the center. Oddly enough, it turned into performance that I could feel! Not bad for 15 minutes of work with a file.

 

I shopped all over, Tried, chevy dealer, autozone, adanced, nothing. I want down to my local napa and asked them, they gave me the cast iron ones like you have, i said isn't there another type, yeah hold on he said, and got them. They are much queiter then the cast iron ones and you do feel the difference Let me know what you find Tom, Hope this helps