hi all i new to land rover only bought my land rover 3 week ago got a m reg 300 tdi anyway since i has it i seem to notice that when i driving on flat road it brill but at soon i come to a big hill i losing power i can be at 50 mph and by the time i get to the top i lucky to be on 20 mph there seem to be no power even when i press it to the floor nothing??? i wonder if my turbo is gone or it somethings else? hope ya can help me on this thanks