my 1997 sebring 2.5 6 cylinder needed a new h20 pump my "mechanic" put one in and put a new timing belt in for good measure....the car lost oil pressure (never an issue before) sent it to a new mechanic they cleaned the screen and it ran good except it stalled when stopping (never ever an issue before!) and the original guy reset the timing belt and started it up it was very loud and the oil never completely lifted again.... stalled worse and now I'm told it's not worth fixing anymore--please help!