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No Fast Idle
I had this problem once before and it solved itself, but it is back. Fast idle doesn’t actually change the engine speed. At all. What could it be?
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19 Replies
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we had this a few years back on our H345. It was the switch on the dash that was not making connection.
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Slide out function?
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Slides worked fine. I even ran them in a bit and back out just in case.
I don’t think it’s related but it also won’t level, even in manual. I can hear valves opening, but nothing happens.
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Sounds like the system does noe see the parking brake signal that it is applied. That will cause both to not function.
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Interesting. I just had Liberty change out the brake chambers. Could that be related?
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It the parking brake signal was not recognized I don’t think the slides would work.
So far I am having trouble finding a fault that allows the slides to work, but not level low or fast idle.
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Other than the parking brake swich, or bad high idle switch / wire, I know of nothing besides the transmission being in gear that will prevent the DD from going to high idle.
Anyone else know of any others?
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If it sees the transmission in gear, the slides would not work.
And no, Karl, the brake chambers have nothing to do with this issue.
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Hmmmmmm….. :/
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On my 02, there is a relay in the bank in the driver’s door area. It is labeled high idle. I do not know what this would have to do with the leveling function, but if that relay does not work correctly the high idle will not engage, or if stuck in the other position (closed or open, I do not remember which way) will not allow the high idle to be turned off. I know since I. Had problem of high idle not. Being able to be turned off, I removed the relay and would go to regular idle. Put the relay in and had high idle which would not allow the coach to go into gear. In my coach have HWH leveling so cannot help you there. Hopes this helps
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Great idea Kim (or Debra). I have that relay also, but swapping it out didn’t work.
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Wait a minute Karl……..you don’t know what an evaportor fan is, but you know what a relay is and know how to swap one out?????
Are you having fun with us?
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I do not believe he is having fun at all, just stressed trying to figure out WT is going on….and what the fix is….
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In all honesty, while I know what a relay IS, I have no clue what it does or how it does it. As to swapping it out, that’s just push and pull. First I tried a couple knuckle taps…
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A relay is a switch.
It takes a relatively small signal such as from a low current souce like from some of the small switches used in the coach to open or close a circuit that has a much higher or heavier source and load.
When you turn the key on the coach to start it, the key switch is not carrying the electrical current required to start the coach, but it is closing a set of contacts in a very large relay to send a lot of electrical current to the starter.
A relay opens and closes its electrical contacts because a small electro magnet does the work. The electro magnet is energized by the small switch or key.
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