The most likely problem is the crank or cam sensor. Dripping coolant could be in the connectors, or possibly one was hit and damaged during installation.
The temperature sensor needs Replacing.
Start with replacing the thermostat.
Check that the 'new' fuel pump is actually pumping.
no, the thermostat would have nothing to do with the car not starting.
Can someone plz help me on this issue
How do you know that it is your car?
Replacing a thermostat in a car is easily done. A 2000 Chrysler is done like any other car. You open the hood, and locate the thermostat near where you put water in, and then you just remove it with a wash cloth.
It wont start
They will get full of crud and start to stick.
Your car wont start. lol
There wont be any leaks, the car wont overheat and it will stay in the normal operating temperatures.
No heat in your car may be from your water pump going out and not feeding your heater core with enough water to produce heat. First remove your thermostat and see if your car stops over heating. If it doesnt, then you need to replace your water pump. Hopefully you havent cracked your heads. If your car doesnt over heat after removing the thermostat, but you still have no heat in the car. Then its your heater core that needs replacing. Always replace your thermostat whenever replacing the water pump.