I have a 99 2500 4x4 With 51K miles on it. The Lift Pump will go down to 0 lbs going up a hill. It hovers at 5 to 6 lbs at 60mph on the level. Pulling a 1000 lb boat and trailer. I put it in passing gear once and the gage went to zero. . Will the Dodge Dealer replace this Pump on a warrenty Claim?