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Old 08-02-2015, 08:22 PM   #1
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Hi Idle

I read on here about hi idle, wondering what that is.

Bruce and Carolyn, Sissy the Boss
2005 Monaco Diplomat M-40PAQ
400ISL Cummins
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Old 08-02-2015, 08:29 PM   #2
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On mine, I turn on the cruise control while in park. Rev up to 1200 rpm and set the cruise. That brings the air up quicker.

Jerry, "EWC (SW)" USN Retired
2003 Beaver Patriot Thunder 505 HP C-12 1550 TQ
Allison 4000MH Ram 4X4 towed
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Old 08-02-2015, 08:46 PM   #3
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Turn on cruise, press SET.

RPM on ours goes to 1,000. Good for pumping air a little faster.
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Old 08-02-2015, 08:50 PM   #4
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As Jerry said. With cruise control on and in park; press the "Set" button. Your RPMs will come up to about 1200 or so. Good for when your stuck in a traffic jam for a long period.
I don't idle my rig for more that about 10-15 minutes. If I'm stuck traffic, as I was do to an accident this Saturday, I will use hi idle intermittently.
Paul, Kathy, and Tux the Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"
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Old 08-02-2015, 08:50 PM   #5
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If your referring to another members question , about why his ISL was idling faster than normal, after start up ( automatically) there is a program in the ECM, to increase idle speed after start up, usually first of the day.
My Cat will go to a faster idle in cool weather, to aid warm up.
As I mentioned to the other poster, I don't know what the parameters are for the auto idle up are on an ISL.
Could be a question to ask if you're in a Cummins shop.
Like , gemert, I can set the idle higher to help bring up air pressure faster by using my cruise control, cruise on in neutral, hold resume till idle speed comes up.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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