RowdyRebel Posted July 22, 2009 Share Posted July 22, 2009 '01 CH613 with an E7-460 and barely over 360K on the odometer. Jakes quit working last week...but not all at once. First, the high started acting like low and nothing would happen on low. Then a couple days later, it wouldn't even do that...nothing in either switch position. Had it in to the Mack dealer and they said the oil lines are clear and not plugged up, and the solenoids are getting power and seem to be working. They are claiming that every individual part of the system is working as it is supposed to, but that the system as a whole does not. That just doesn't sound right to me. One mechanic said that it might be due to low oil pressure...but I haven't noticed my truck's oil pressure being any lower than it's ever been when it WAS working. They say there's an update kit available...new oil lines or something like that...but that it's $2000 and just not worth the money. If it was a stronger jake, like the 3-stage that was on the 475 CAT I drove a few years ago (would hold 80,000 at 35 mph heading down Monteagle without ever needing to touch the brakes) it might be a different story...but for what it was, it just isn't worth dumping that kind of money into it.I'm stumped. I don't mind when things I never use don't work (i.e. the air conditioner hasn't worked for as long as I've owned it)...but for something that I use regularly, it just bugs me when it doesn't function properly....especially when there doesn't seem to be any real reason why it doesn't work. Quote When approaching a 4-way stop, the vehicle with the biggest tires has the right of way! Link to comment Share on other sites More sharing options...
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