Jim@HiTek wrote:
I should have said, "...since MANY diesel models don't...".
Now, whether a safety system component known to repeatedly fail, sometimes at high vehicle speed, bringing a 22K and heavier vehicle to a screeching halt in traffic, creating a dangerous situation for both drivers, passengers, and oncoming traffic can be considered 'poor design' is of course an opinion. And when many consider replacing a $30 safety system component every 15,000 miles as being necessary, I wouldn't call that 'good design' My opinion only.
I really and truly wish this parking brake was capable of bringing the rig to a screeching halt and doubt seriously if you've personally ever experienced this. That would even qualify it as an emergency brake and I truly wish, like said. Having said that, a DP will do the same thing with an air pressure failure and resort to it's fail safe default of ....BRAKE ON!
As for this one troublesome part, I'd rather change out one of these than do an oil change. Quicker and a whole lot cheaper, as well.
Overall it's not a bad design and much improved with the last version. Just ask our resident AP guru....oldusedbear...and one who knows more about it than it's design engineers.