Quote Originally Posted by Jon Wehrenberg View Post
Jeff did make a statement that may lead a Prevost owner to draw an incorrect conclusion. Once you have turned off the key on your Prevost (except for some very old coaches) the air in the air bags should be "locked" in the air bags unless the air bags, the Norgren valves or their respective fittings are leaking. The auxiliary air system pressure can go to zero, every device that uses aux air including the step cover air cylinder can be blowing air from it, and the bus should not lean.
Jon and all- This set up Jon refers to was noted and discussed on about day 3 of the dum and dummers head scratching. At what year Prevost changed over and make this "check valve" type of set up to lock the level in place or prevent the bags from dropping (even if the aux air went to zero).....I don't know what year they changed over, but my 97 Roayl on a 95 Chassis, didn't have it yet. They said that I had changed about 80% of the parts that would now allow my chassis to have one or two more components changed and mine would have this check valve (for lack of a better term) type of set up.

As regards the cost, it was in excess of $4,000 and looking back at it now, I should have refussed to pay for all the un-needed parts but I was too pre-occupied with working on the computer and the phone to make a sale to scrutinize and question it. Now that I've gone on to hear more stories like mine, I'll be less of a push-over hopefully. Joh is correct that you have to lead the mechanics around with a bull nose horn and watch what their doing. Mechanic leaves to go get a simple part and where do they dissapear to for 20 minutes ? If I thought they were checking the POG archives for answers I wouldn't mind paying for that.