I recently replaced the head on my Vaxuhall Frontera 1993 2.3 TDI as well as the injectors and glow plugs. There is no problem with the compression as I tested that after replacing the head. The car will not start at all. It tries to crank but nothing. I was told I might need a tow it to bump start it, but this would have to be the last option as it is at a farm on a very curvy road.