Cruise Control Monaco Executive Roadmaster Chasis
Hello, I don't think I've owned an RV that has ever had working cruise control LOL. I have a 2006 Monaco Executive with a Roadmaster chasis. The cruise control for the Smart Wheel system apparently that it has is on the steering column and it is buttons that you push on the steering column. The cruise control lights up but it never sets.
Here's what I've tried and do know. I've looked for a fuse but since the lights on I think that's good. The step is not out and no warning lights on the dash are on. I've tried it with and without the air brake on. I've tried it above 25 mph and all the way up to highway speed. The idle control with the cruise pressing set and resume will idle down to 500 and up to about 850. I thought it should go higher but it doesn't go any higher. Not sure if this is that clue but it is working to some extent. I've driven with the exhaust brake on and off lifting up the brake pedal from behind it while trying to set the cruise so it doesn't seem to indicate that the parking brake switch is engaged or anything like that and I would think that would show up on the dash maybe I don't know. Unless the parking rate switches completely bad wouldn't there be other problems? So not sure how to check that exactly but also heard that it runs off vacuum which diesel engines don't generate and I do notice a vacuum canister and there's a solenoid of some kind underneath it looks a little melted except for the dash AC actuators all work but that's a whole other post cuz the dash AC doesn't really blow cold.
Anyway trying to figure out how to diagnose and troubleshoot this Cruise control. I can't find any diagrams on the system and how it's routed and works. It would be great to get a diagram of the routing where various components are that kind of thing. Does anybody have that and can they provide any guidance into common issues.
It has Cummings ISX15 525hp (supposedly upgraded to 600hp-this is probably true because it was offered as an option but I don't really know how they upgrade that and why it's not on any of the stickers other than the back of the camper).
Drives me nuts when people resolve problems and they never post on these forums with the solution was so I promise not to do that once I figure it out!
Here's what I've tried and do know. I've looked for a fuse but since the lights on I think that's good. The step is not out and no warning lights on the dash are on. I've tried it with and without the air brake on. I've tried it above 25 mph and all the way up to highway speed. The idle control with the cruise pressing set and resume will idle down to 500 and up to about 850. I thought it should go higher but it doesn't go any higher. Not sure if this is that clue but it is working to some extent. I've driven with the exhaust brake on and off lifting up the brake pedal from behind it while trying to set the cruise so it doesn't seem to indicate that the parking brake switch is engaged or anything like that and I would think that would show up on the dash maybe I don't know. Unless the parking rate switches completely bad wouldn't there be other problems? So not sure how to check that exactly but also heard that it runs off vacuum which diesel engines don't generate and I do notice a vacuum canister and there's a solenoid of some kind underneath it looks a little melted except for the dash AC actuators all work but that's a whole other post cuz the dash AC doesn't really blow cold.
Anyway trying to figure out how to diagnose and troubleshoot this Cruise control. I can't find any diagrams on the system and how it's routed and works. It would be great to get a diagram of the routing where various components are that kind of thing. Does anybody have that and can they provide any guidance into common issues.
It has Cummings ISX15 525hp (supposedly upgraded to 600hp-this is probably true because it was offered as an option but I don't really know how they upgrade that and why it's not on any of the stickers other than the back of the camper).
Drives me nuts when people resolve problems and they never post on these forums with the solution was so I promise not to do that once I figure it out!
