Coolant leak i have a 94 caprice classic. i have an exhaust manfold leak that causes so idleing issues. but thats livable. the main issue is the fact that i have a coolant leak under the passenger side and its hitting the exhaust manifold and creating a smoke screenfrom under the hood. i recently used a bars leak product(yeah i know) and now i have white smoke coming from the tail pipe under acceleration. i need some help.

Turn off the ignition of car.
Let the engine and radiator cool.
Refill the coolant to the required quantity with the approved type.
Wait until the coolant helps reduce the heat completely.
You should not see the light now.

White smoke is an indication of a bad head gasket and engine coolant getting into a cylinder.
Check:
- dipstick for coolant mixed with oil
- Radiator for coolant level.
If coolant on oil or coolant level low, time for some time consuming and costly repairs.

yes it is a blown head gasket also probally a broken valve these engines do not like heat do your self a favor and stop driving it your doing more damage to it everytime you start it

It will be the heater core. If you can smell it inside the car and it's steaming up the windows the core will need to be replaced. Remove the heater core housing and check to make sure its leaking from the core itself. You might get lucky and have a leak from the hoses running to core instead. Hope that helped.

There are three main typical causes of what you describe:Binding calipers, binding proportioning valve, and master cylinder not releasing fully.
At issue is what, exactly is happening....can you describe please?
Doc

Turn signal switch my be your issue

Check for power and ground directly at the cooling fan connector (the red and black wires). You can either jumper across the relay or with the key on, disconnect the coolant temperature sensor (2 wire connector near the thermostat housing, usually yellow and black). This should override the computer and energize the fans. If you have good power and ground at the fan connector, then the fan motor is no good. If you don't have power and ground there, it's a wiring issue from the relay, the relay itself, or no power to the cooling fan circuit (fuse).

check your distributor, remove fuel pump to take access, check the high and low resolution wires,

Clogged or disconnected drain hose from the heater core box. Or bad/leaking heater core. Does the liquid smell like coolant. If so bad heater core. If not and the water only when you use the AC then it is a drain hose issue. If neither of those pan out you could have a leaky windshield. However 99% of the time a wet passenger floor is caused by a bad heater core or drain hose.

If its in the line its self just cut the line in two and take some fuel line hose, the right diameter, slip it over the line with a couple of clamps and that should fix it. Theres not much pressure there and its a cheap fix.