over heating problem

had used motor put in 98 dodge ram 5.2 sometimes it runs at 220-245,put fan motor on raditor,new 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.
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poo2u wrote:

Rat-e-ate-or is clogged. Get it re-cored
JAM
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