Best way to find exhaust leak?
Ive got an exhaust leak on my truck and cant seem to figure out where from. The motor and cats were replaced recently. The noise is most noticible when starting the truck with the window open. I would think it would be the exhaust manifold as that should have just been bolted down tight with a new gasket. Plus it doesnt sound like a manifold leak, its not really audible in the cab like manifold leak ive heard. So whats the easiest way to determine the leaks source?
Thanks in advance for any help, i hate an exhaust leak. Makes me feel like im driving a old beater truck