Heat stop working change the theromastat already .

theres probably air in the system. park on ramps up front or on a good hill , removed radiator cap and let it run and burp out the air.

To bleed air which stop the heat.

If all your fuses are good, start looking at your ignition switch. It's the one thing all those circuits have in common.

what would cause the 2001 honda civic to over heat after brand new water pump theromastat timing belt and alternator blet replace yesterday and when it overheated i pulled over and checked all the fluids i had like oil or transmission fluid all over my under part of motor alittle on my breather and top part of hood , the oil also has a tendency to smell like gas but its not oil/gas mixture please help

done properly it shouldn't. While it is difficult the water pump can normally be changed without pulling the timing belt. Although this is not always true. I highly recommend you get the Haynes Repair manual on that vehicle before starting this repair. There are step by step instructions with photos of the work so you can see the proper alignment. If you are going to have to remove the timing belt I recommend you take the time to go ahead and replace it. Since there will be specific steps to align the Crank and Cams to make sure the timing stays correct.

The heater core (a mini radiator located under the dash) or its feeder hoses are clogged. They are not allowing water to circulate through the heater core. That is where the heat comes from.

Follow top radiator hoze to the engine block. The item it is attached too is the thermostat hosing. Remove coolant for the radiator. Remove theromastat housinf. Remove theromastat.Clean all casting surfaces for new gaskert. Place gaskert and sealer on cleaned surfaces as well as the new thermostat in exactly ther same position as the ond one came out. Tighten bolts evenly. Refill the radiator with the coolant. Add extra coolant to replace what was lost. 

Your radiator may not be circulating have it checked, also see that the radiator fan is working

sounds like a water-pump ,or a busted hose,start your car and try and see where the leak is coming from.if its leaking from the rad it could be a bleeder nut its about 3 bucks or the rad itself,if it were the theromastat it would normally just overheat and shut down,im not sure where the thermomastat is on your caddy but it should be behind your fan and it is inside a part called a gooseneck a metal part with 2 or 3 bolts

Have you checked the thermostat?