exhaust leak

hey all, I have a ‘03 V6 crew cab With a bad oil leak, white smoke exhaust, and constant overheating. I can’t seem to find the leak anywhere. my engine bay is just a mess and I don‘t even think I have a dipstick for my oil. Would it need an engine rebuild? The guy who had it before me looks like...

2002 Frontier V6 - Crew cab Several months back I had the muffler replaced and was informed I had a big leak at the exhaust manifold. I do, and it is noisy. I was quoted about $450 for the repair + $80 for each bolt that needed to be re-tapped. I hooked my shop vac to my exhaust and blew air...

I have a exhaust leak but not sure where. I hear it close to the manifold does anyone have some advice on how to pinpoint where it’s leaking? I will be doing it myself and have read about taking off the manifold any tips to help it suck less? Thanks