Your Engine has be been overheating The temp gauge goes up and down you put antifreeze in it drips out underneath your engine had some white smoke come the exhaust. HELP PLEASE?

This sounds serious and could lead to significant engine damage if not addressed immediately. The combination of overheating, coolant leakage, and white smoke from the exhaust strongly suggests a head gasket failure or a crack in the engine block or head.

DO NOT DRIVE THE CAR. Continuing to drive it will likely cause irreversible damage.

Here's what you need to do:

1. Stop driving the car immediately. Park it in a safe location.

2. Call a mechanic or towing service. This isn't something you should attempt to fix yourself unless you have significant mechanical experience. The problem is likely internal and requires professional diagnosis and repair.

3. Describe the symptoms to the mechanic: Tell them about the overheating, coolant leak, and white smoke. This will help them prepare for the diagnosis.

Possible Causes (for a mechanic to diagnose):

* Blown head gasket: This is the most likely culprit given the symptoms. The gasket seals the cylinders from the coolant passages. A failure allows coolant to leak into the cylinders, causing white smoke (steam from the coolant) and potentially causing the engine to overheat.

* Cracked engine block or cylinder head: A crack can allow coolant to leak into the cylinders, causing similar symptoms to a blown head gasket.

* Coolant leak elsewhere: While less likely given the other symptoms, there could be a leak in a hose, radiator, or water pump. However, the combination of overheating and white smoke points towards a more serious internal problem.

Ignoring this problem will likely result in a much more expensive repair, or even a need for engine replacement. Get it towed to a mechanic as soon as possible.