Ford eastvaal Middelburg

My bakkie is been in and out of ford 4 times this year. The first time it started in January and stood there for 4 months. Told me it was a actuator sensor. Then it was the turbo. And after that it was the diesel pump. Got it back. Few days later turbo failure. Then they put in a new turbo for me. After about 2 months gone by. My car goes into limp mode again. Now they telling me it's the diesel pump. Have to do a diesel test because the diesel looks dirty. And i only throw diesel in at an engen garage. Already spend over R30 000 there and getting no where. Just one problem over the other and they are not finding the real problem that is causing all the other ones