My battery goes dead over night when I leave the + wire on checked over all wires can't find anything the battery works fine in my other truck can leave it for a week no problems can't figure this one out

An ammeter would be best, but a test light may work. Shut the engine off and pull the fuses one at a time, and check to see if current is flowing with the engine off. A few circuits such as the ECM will have a small current all time. Find a circuit that is drawing very much and it may have a short. Another thing to check is the field circuit for the alternator.