GordnadoCRD wrote:
Question. was this a sudden change, or just the next thing on the list?
Question 2. When you say the pedal sinks, do you mean it sinks lower than you expect, or does it continue to sink until the pedal is flat to the floor with no resistance left?
When I first drove mine I thought the brakes were funky, but had plenty of life when I checked. Basically, if I pushed HARD on the pedal they didn't go to the floor but quite low. If I stopped hard enough to activate the ABS, I could actually feel the floor mat, although the pedal didn't quite hit. There has been no change since then, and everything works fine, just took some getting used to.
Something else about the CRD... the vacuum doesn't come from the engine it's self per se, it's a vacuum pump inside the engine crankcase. At idle the volume is pretty low, so if you pump repeatedly, it definitely will lose vacuum and brake boost power.
If it were Master Cyl. there would almost definitely be fluid leaking somewhere. The one exception would be if it's leaking internally, and in that case you're lucky to be stopping at all. The pedal will just go to the floor and you will lose any brake power you had. In this case, it's definitely the Master Cyl.
Thanks for your post yes came on suddenly but because i did so many things at the same time not sure if I caused it when I compressed the wheel cylinders or while I had 1/2 the engine apart.
the peddle goes what seams like all the way to the floor but the brakes still hold.
Yes I am aware that diesel engines need vacuum pumps the steel line coming from the pump seams to have good vacuum at idle and good at the booster as well as at the solenoid going to the turbo. but when I press the brakes and remove a line from the solenoid input the vacuum disappears