My avenger sometimes wont start until i tap fuse box also temperature guage reading hot until i turn heater on then it goes down

Hello, is the temperature gauge reading hot even when the engine hasn't been run and the car is cold? There's too much we can't know from your question - need more information. As far as not starting until the fuse box is tapped - are you certain all fuses and relays are OK? I would focus there if tapping the box results in the engine starting. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops