it is overheating and resavore wont hold coolant i got a new one but dont know how to put it in im a girl but should i flush old shit out first

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. It would be unusual for this particular engine to have a failed cylinder head gasket. However, anything is possible. It is also difficult to know if your reservoir is leaking or if it is just overheating. If it is overheating, replacing it will not help anything. If it has a crack, and is leaking, replacing it might help. Flushing your cooling system is never a bad idea. But it is not required to replace the reservoir. Not the best "do it yourself" repair for the unexperienced; you can burn yourself with hot engine coolant if the engine is warm. So, be extra cautious, and reach out to a shop near you for guidance. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.