98 ram 1500 318

From : sandyk

Q: had used motor put in 98 dodge ram 5.2 sometimes it runs at 220-245put fan motor on raditornew thermostate still heats when it feels like it. someone said put new heat sending unit on. ok where is it located on 98 dodge ram. any advise is welcome. been to 4 shops with it no fix yet. .