How to locate an exhaust leak

[Jester47]

Our 2003 Dutchstar 3802 with a Cat e-3126 engine (117K miles) has exhaust smell coming into the rear bedroom. I have checked and update all of the seals and the cross engine flexible pipe has been replaced. I agree with the thought that if exhaust can be smelled in the coach then it is not only going out the tail pipe. I have heard of opening up the covers and running the engine at 1500-2000 rpm, but how do I find the exact point on leakage. Can I spray water or something on the exhaust system (until it gets hot). As always appreciate any help.

[JNSNWT]

I would think you would be able to see black soot streaks where the exhaust gas is leaking out of the exhaust system

[Dutch Star Don]

Look for the black soot. Depending on the size of the leak, you can take a piece of tubing, like 3/8", and stick one end in your ear and use the other to fish around the areas where you think you have a leak. If there is enough hot gas escaping, it will blow into the tube and you'll hear it.