Basically,
My small problem has escaleted into one large one. After having injectors replaced, fuel rail, fuel regualtor, and injector clips, car sounds like a truck. How can this be so with new parts and car did not sound like that before parts replaced? I don't know!...
Anyway, now supposedly the exhaust manifolds are gone. When the car is first started sounds like a truck. With higher rpms escaping air sound seems to decrease. Smells like exhast fumes in the cabin a little. Can this confirm that exhaust manifolds are gone?

 

You have to actually look at the maifolds and see if the nut is missing. If it is, that means(most likely) that the stud is broken. It's not really a manifold problem.

The front is pretty easy but the rear side is hard to see. You might have to use a mirror w/ a handle or take a look from underneath the next time you change your oil.

It sounds different depending how bad the leak is. It ususally goes away when the engine warms up.

 

also keep in mind injectors tick. so don't go crazy beacuse of a fresh/healthy injector

 

Thanks fellas for the info. Forgot to mention though that the dealership inspected the entire car for me and wrote in their estimate: Replace both Exhaust manifolds and gaskets $1806.67...

 

got my rear manifold done for $200 i love knowing the manager or autozone (not cuz of their parts, because he knows alot of good mechanics)

 

replacing manifolds and replacing the studs are completely different things. read up on the FAQs about it, THEN ask questions.

 

i was gonna go ahead and replace my gaskets when i pull the motor. .. . .