Kia sportage 2000 engin chech signal come but not go hard start

If the vehicle was running hot it will continue to overheat until you locate a coolant leak and repair or replace the leaking part. It is critical you do not wait to repair this. You must first add water to your cooling system before you can troubleshoot the problem. Add the water while the vehicle is cooled down. If the vehicle is having trouble starting it is possible that you have allowed the engine to run hot too long. You could also have a head gasket leak from the motor. This could let coolant leak into the oil and you can check your oil and find a milky white substance that is a mix of coolant and oil. If that is the case you need to take the vehicle to a motor repair shop. To troubleshoot leaking cooling system get or borrow a cooling system leak check kit. It screws on in place of the radiator cap, you pump it up and use a flourescent light to then look in the engine compartment under the hood for a dripping green coolant leak. Good luck.