Heating only works when giving it a thrashing?

  1. #1
    On me mates 16v, the heating didnt work, so put in a thermostat (previous owner didnt even have one ). tryed bleeding the system but the nothing was coming out the last bleed screw near the cambelt. The coolant is a funny colour so going to do a coolant change tomorrow, could the lack of decent coolant be the problem here?
  2. #2
    Possible the water pump not pushing the coolant around the engine or it could be the head gasket shot..
  3. #3
    might be worth giving the sytem a good flushing through with a hose as you might have a blockage somewhere
  4. #4
    cheers lads