Ford Ranger taken for service and bad customer ser

February - the car's water pump broke and was taken in for repairs and a new 1 was installed but the problem continued we poured water in the car n after an hr the water has dried out u'l need to put more water, the car was taken back to dealer and they advised it needs new engine which I paid R59000 in April/May,End of June I took it in to the dealer for service and I got stuck with the car end of July, the car was towed to the same dealer and they now say its the diesel pipe that has a problem that's why we were stuck. I feel we are getting a raw deal and they have very bad customer service cos I asked for a courtesy car they said how I move around is none of their business and this current issue is not any of their fault, we bought this car from them brand new and we are paying so much for the problems and they feel its not their problem. We feel since we have just paid for a new engine and we took it in for service 3 weeks ago they should own the fault, we really need your intervention regarding the matter. We have reported the matter to Ford Customer Care***) but we are getting no joy, the Ref No Is ***,the Tech Person at dealership is Christopher, ***