My 2007 Dodge Nitro is over heating and leaking antifreeze. The thermostat was replaced. When the Nitro starts to over heat, I turn it off and try to turn it back on the whole Nitro shakes violently. What is wrong with my Nitro?

You need to start by getting the car scanned for codes. Also, don't drive it like this. You likely have a misfire so that can be a number of things. Bad coil, spark plugs, injector, low fuel pressure. If you prefer to use a shop for the diagnosis and repair then use this link to find a good one near you. https://repairpal.com/repair-shops Alex