Chevy Caprice

First of all replacing the water pump has nothing to do with the car not starting. You say you replaced the water pump. You shouldn't have a water pump leak. Where is the leak coming from? If it is coming from the 2 areas where the water pump mounts to the engine block you will need to take it off and replace the gaskets. I hope you used a sealer with the gaskets. If the leak is coming from the weep hole under the shaft of the pump your replacement water pump is defective. I have seen this happen before on a new pump. The other thing to check is the radiator hose to water pump. Make sure your clamp is tight.

If your car is not starting is it at least turning over. If it is you have either a fuel problem or a electrical problem. First you need to see if you have spark at the spark plugs when turing the engine over. A test spark plug lead with test light is available at your local parts store. Get one they are not expensive. With it you can check the spark. If you have spark the engine should start unless you have a fuel problem.
Hope I answered your question.

Fred

fred