what gaskets kep coolent from entering the engine itself that would give you white smoke?

on a v8 5.0 305 TPI fuel injected 1986 trans am

 

Coolant entering the engine will usually produce white smoke/steam from the exhaust. The common places for leakage are head gaskets, intake manifold gaskets, and on a TPI, the coolant passage on the underside of the throttle body can sometimes (if the TB is cracked) introduce coolant to the IAC air passage.

There is also a remote possibility of head or block cracking if the coolant has frozen.

Between performing a thorough visual inspection, a cooling system pressure test, and a cylinder leakage test, you should be able to determine which it is.

 

great thanks, im not sure if i do have a leak just hard to tell in the winter time when u can see your breath in the air. so u can definately see the exhaust blowing in the air. but you told me exactly what i needed to know thanks