A New Noise And Source

An update. The coach has been at the local Ford Dealer, can't find anyone else locally to work on the chassis, and they called this afternoon with the news. Apparently the problem was bolts, locations unknown, in or on the driveshaft that were not torqued properly. We won't pick it up until tomorrow to see if that has indeed fixed the problem. But I'm optimistic. Chuck

Jim@HiTek wrote:
Ahh, you're right, I did slip into hyperbole there.

I like that word...:B
No harm done and just a couple of gear heads mauling things over here...:D

Ahh, you're right, I did slip into hyperbole there.

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.

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.

Jim@HiTek wrote:
Still wondering if the Bounder is gas or diesel. Makes a huge difference since most diesel models don't use the poorly designed Chevy type parking brake.

Depends what you call Chevy type and DP's certainty do use a default automatic parking brake. Difference being that they use air for releasing it, rather than a hydraulic pump. Chevy and WH have a high failure rate with one of it's pressure switches in the version III model and why you might be labeling it as a poor design.
Then again, I have no idea of your knowledge about the system itself, it's elect./mech. design properties, it's development history or why it was implemented in the first place.
While we're here, auto park chassis owners should know that there is a better pressure sw. to replace the infamous GM RGS out there now and I believe being marketed by Brazel's.
Still with a little knowledge of the system and given the Amazon price on the green or brown replacements, it's not a big deal and many change it out, every 15K miles or so, to prevent failure at an inopportune time. I does help with knowing what you're doing, along with having some education on the system, however.

Bruce Brown wrote:
Check for a loose shock. I had a pickup once that did the exact thing you're describing - it was a loose shock.

X2 on that.

Also check the sway bar for any bad or missing bushings.

Check for a loose shock. I had a pickup once that did the exact thing you're describing - it was a loose shock.

I don't know if he checked for fluid, but I will do that today. Thanks. Chuck

If the mechanic thinks it is the parking brake did he check the fluid level? I had a 2005 gasser with the ford v10 there was a plug that I had to remove to check the fluid. Just stick your finger in the hole and see if you get any fluid on it.