My cars leaking (95 camaro Z28) somewhere in the area where you check the trans fluid and R-134a enters that odd shaped black box and behind the front right tire. I was driving and smoke started coming out of the right side of the car by the windshield. Been happening about three days now. I keep checking the coolant, oil, and transmission fluid but the levels seem to have not changed. When I drive it I don't notice anything different, no overheating, or nothing. Whatever it is it's leaking on top of everything and takes a while to dissolve in the driveway and turns into a yellowish chalk inside the car. Suggestions on what it might be or coming from?

 

sounds like you probably have a bad heater hose

 

your getting it inside the car, passenger side? you need to check your coolant level in the radiator not the overflow tank. wait for it to cool before opening. there is a drain from the heater box for condensation from the a/c. if your heater core is leaking coolant will come out there and can get on the exhaust. also if heater hose is leaking close enough to the firewall it could be coming from heater hose and getting a little inside. chalky stuff almost sounds like the a/c may be leaking, is your a/c working? it would have some oil in it and the gas would leave a powder sorta looking stuff. track it as best you can and see if you can get a better idea where it could be coming from.