Y reg 1.9tdi ford galaxy LX model 90ps cambelt and water pump changed with full service Water tank builds pressure/ no low water warning ever takes long time to give hot air through heaters or the needle to move never goes more than half temp gauge, radiators fans do not kick in New thermostat, new Radiator thermal switch, newly installed. Sometimes resistant to move uphill, sometimes ok. Engine sound varies to temperature, sometimes normal, sometimes loud.? Acceleration smoother when temp gauge is in half. Steering: vibrates when turned to either sides. new tensioner installed. still does it , when turning.? HELP