Quote Originally Posted by claymore
That hard stuff breaking up is rust and scale from corrosion that is building up on the inside of the hose and it cracks and flakes off when you squeeze the hose. It's definitely time for ALL new hoses.
will that harm the water pump???

once i get all new hoses... is there any way 2 get rid of the rusty stuff from the engine... just flush the fluidz through???