Semi-mechanical question

[jesuspunk25 10+ year member]

I just bought a 97 corolla for a work car. Still needs a system, but the engine is pretty loud inside. Sounds like a constant 25hz wave or something... The exhaust manifold is cracked and I'll be replacing that soon but is there any other reason it would be that loud. It's only inside the car too, outside it doesn't sound very loud at all. I just hope I can figure this out before I finish installing my system.

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[oldschoolboomer 10+ year member]

sounds like an exhaust leak to me? is the muffler all rusted out too?

 

[jesuspunk25 10+ year member]

No rust that I noticed... I plan on buying a new header since that's maybe $10 more than the exhaust manifold alone. Would an exhaust leak be that low of a noise?

 

[91Chevy 10+ year member]

My exhaust is broken right after the cat, and it's brutally loud inside the cab.

 

[jesuspunk25 10+ year member]

I might have to replace my whole exhaust from manifold back then. Does it sound like really low bass? I mean I always thought exhaust problems would be loud outside the car too... but I haven't paid much attention to it either. I'm not much of a mechanic, but how crazy does loose engine mounts sound for an explanation?