On the way to peterborough at the weekend in the GS the brake pedal inexplicably went to the florr (or close to it) about two thirds of the way to the show. I carried on to the show regardless, there was just enough bite to stop you quick enough if you needed to. the pedal would come back up if primed.
When I got to the show I stopped the truck and proceeded to explain to one or two people on the stand what had happened. We looked for leaks and there were none, no missing fluid either. When I tried to demonstrate how far down they had gone they worked perfectly (engine stopped), so put it down to brake fade.
On the return journey, I hadn't even got out of the gate when they went again. It then became apparent that they only went to the deck when the engine is running, so I'm guessing I must haver a fautly servo, although I'm somewhat surprised on two counts. Firstly I was lead to believe it had a new one on it when I bought it, and it does look new, all nice and shiny! Secondly, I wouldn't have thought it would have just gone like that, I would have expected it to be more gradual.
Any ideas, before I start pulling it to bits and spending money?
Thanks in Advance
Graham