My M 11 idles at 775 which I think is too high.
What RPM does your M 11 Cumins idles at October 26, 2020, 03:04:11 pm My M 11 idles at 775 which I think is too high. Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #1 – October 26, 2020, 03:34:36 pm We have ours set at 625. There is a switch under the dash that can be toggled to change RPM. Seems like every push is about 25 RPM. With your at 775 that is getting close to where the trans won't engage.Mike Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #2 – October 26, 2020, 03:38:19 pm 650 Pulled from internet. Ive changed mine before but everything shook more at low idle so adjusted back to higher idle.If you have a smart wheel with the cruise control on the wheel you can adjust the idle speed with that.With the engine at idle, the trans in neutral, and cruise control set to OFF.Press either the set or resume button until the idle settles at the correct value. One button raises rpm by 25 and the other lowers by 25. The setting will be permanent until you change again using this procedure. Quote Selected 4 Likes
Re: What RPM does your M 11 Cumins idles at Reply #3 – October 26, 2020, 03:46:12 pm Quote from: oldguy – October 26, 2020, 03:04:11 pmMy M 11 idles at 775 which I think is too high.You may get stop sign creep with the idle that high. Especially with cold brakes.Pierce Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #4 – October 26, 2020, 04:08:39 pm Cummins in Vegas replaced our ECU this year. They set the idle at 700. No vibrations. Rebuilt brakes and a 110/130 D2 controller holds it easily at idle Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #5 – October 26, 2020, 04:43:41 pm Tommy my won't change from the smart wheel and Mike I have two switches near the windshield under the flip up part of the dash I will try them and let you know Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #6 – October 26, 2020, 04:50:27 pm The switch that toggles up and down is the one that you want. On our coach it is the one on the right. The one on the left is just a one way flip switch.Mike Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #7 – October 26, 2020, 05:07:15 pm Thanks Mike I just went out and reset the idle and 675 seems good. What is the other switch for. Tommy the Cummins rep here hadtold me the cruise system might work and Pierce the park brake wouldn't hold it in reverse and now it does. Thanks everyone for yourinputs. We have so much good information on this Forum Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #8 – October 26, 2020, 05:19:51 pm Old guy the set and resume rpms that increase the idle speed are adjustable.Oh you have to turn the on switch on the steering wheel on first. Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #9 – October 26, 2020, 05:21:08 pm Setting low idleHere is a discussion I found, Sounds like not all smart wheels will let you adjust the idle? Quote Selected 1 Likes
Re: What RPM does your M 11 Cumins idles at Reply #10 – October 26, 2020, 05:38:22 pm When my cruise is on I can increase the idle, that wasn't my problem it was slowing the idle down. Everything is great now. Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #11 – October 26, 2020, 06:09:51 pm Quote from: oldguy – October 26, 2020, 05:07:15 pm What is the other switch for. On your era coach IIRC it is for pulling codes for the ABS. I will need to think about that a while as to when they changed the system to something else.Mike Quote Selected 1 Likes
Re: What RPM does your M 11 Cumins idles at Reply #12 – October 26, 2020, 06:17:25 pm Quote from: Tommy D – October 26, 2020, 05:21:08 pmSetting low idle Sounds like not all smart wheels will let you adjust the idle?Tommy,It isn't just the smart wheel it is also which engine ECM the coach was equipped with.Mike Quote Selected 1 Likes
Re: What RPM does your M 11 Cumins idles at Reply #13 – October 26, 2020, 08:09:39 pm 600 rpm for mine Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #14 – October 26, 2020, 08:19:18 pm Quote from: Roger & Susan in Home2 – October 26, 2020, 08:09:39 pm600 rpm for mineRoger, in gear ? Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #15 – October 26, 2020, 10:42:35 pm Start it up, idles at 600 RPM in neutral. 800 at medium idle )cruise on, set button, about 1000 or 1100 at high idle, res button. That is what I recall. Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #16 – October 26, 2020, 11:02:41 pm Quote from: Roger & Susan in Home2 – October 26, 2020, 10:42:35 pmStart it up, idles at 600 RPM in neutral. 800 at medium idle )cruise on, set button, about 1000 or 1100 at high idle, res button. That is what I recall.Same here. Quote Selected
Re: What RPM does your M 11 Cumins idles at Reply #17 – October 27, 2020, 12:00:43 am My high idle is set to 1300 Quote Selected