1992 Dodge Daytona Possable exhaust leak with white steam f

Smells problem
1992 Dodge Daytona 4 cyl Manual 160000 miles

Had this car for 2 weeks now and hope you guys can help! I know that the Steam is normal when you first start the engine but I noticed that it was coming from under the hood the other day on my way home from work, when I got home I let the engine cool and started it back up and got my roommate to rev the engine, the steam looks like it is coming from in-between the engine and the air filter towards the cab of the car, I was smelling the sweet smell of antifreeze through the vents mixed with exhaust for the first few days I had the car after a coolant flush and refill the antifreeze smell dissipated mostly but exhaust smell stayed, took it in and had a pipe replaced from the manifold, but smell still comes back when I sit in traffic, checked for antifreeze smell or leak on passenger side from the heater core but didn’t find anything, heat works but "pulses" or "putts" like the engine, the steam clears when the car heats up and the antifreeze smell goes away but the exhaust smell seems worse when the car stops and the heat is on(non existent when the car is in motion over 20 mph), should I be worried about antifreeze leaking into the system and where could it be going or coming from if I can’t find any pools. Check the coolant level daily and it stays full (can see it when I take the radiator cap off) should I be worried about the steam from the engine or is it just an exhaust leak that the mechanic missed?