While the exhaust is still cold, so do it quickly, spray any area that you think is suspect of leaking with a mixture of dishwashing soap and water. Then look for bubbles, and you will find your leak. THis will cautch a very small leak, however a very large leak will jusy blow the soap awayfrom the leak, so watch it closly. once the exhaust gets too hot youl have to stop.

Dan

2001 Kia Sportage 4x4 4dr Stock as of now
other truck
2000 Ford F250 power stroke diesel 4x4, crew cab, long bed, 265/75/16, homemade tymar intake, zoodad mod, AIH mod, CCV mod, foil delete, coolant filter, Harpoon mod, pre pump mod, crossover