Typical RPM at idle? - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 03-15-2017, 01:40 PM Thread Starter
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Typical RPM at idle?

Just got another 7.3 for my dad and it came with an edge programmer on it. It's a 2001 with 153k miles! Before handing it over to him I wanted to make sure everything is straight. The edge programmer that's on it is one of the 1st generation ones, that's gives me a simple small screen that displays the RPM, Boost, EGT, and battery voltage. The RPM, without looking at the gauge feels to be pretty low at idle, its not necessarily so low that it feels like it's going to die, but the reading for RPM gets as low as 654 and I just feel like that's pretty low. It vibrates a little more than my personal 7.3. Any suggestions on if that RPM at idle is normal or not?
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post #2 of 10 Old 03-16-2017, 12:47 PM
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sounds normal

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post #3 of 10 Old 03-20-2017, 08:56 AM
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Yeah that sounds about right, my 99 will idle about there. Unless its cold, then it will start at about there and jump up to 900 or so after a few minutes.
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post #4 of 10 Old 03-20-2017, 09:53 AM
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Normal idle in my opinion.


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2002 F-250 7.3 auto CC/SB lariat 116k miles, 6.0 trans cooler the rest is stock.
1996 F250 460-auto-ext.cab-long box-4.10-152k-10mpg all day running or not.....
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post #5 of 10 Old 03-20-2017, 10:58 AM
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The 98 E350 that I drive once a week has a 7.3 and the device you described also and it idles at 735 rpm and vibrates a lot at idle. 180000 miles on this one. It also has very little power in first gear like there is no boost but when it switches to second and on up the boost comes on good. This is the biggest passenger model and I have no idea how heavy this truck is.
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post #6 of 10 Old 03-20-2017, 03:04 PM
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Can't say exactly right now but I think my '02 7.3L idles about 800 rpm, will check next time I drive it and report back.
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post #7 of 10 Old 03-20-2017, 09:03 PM
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Howdy, I have an Edge Juice with Attitude product on my 6.0 and send it in to the manufacture every couple of years for an update reflash. It takes a couple of weeks and it returns with a new feature or noticeable change. I once sent in the unit with the old thermo-couple and they returned it with a new one. What I am saying, the manufacturer has provided great customer service with me. I would suggest calling them and finding out if there are any updates for your Edge product.

To answer your question, my experience with idling issues is variable with fuel quality, outside air temperature, motor temperature, and DIRTY OIL.

That is my 2 cents.
KenO

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Kenster in NW Wyoming

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Edge Juice, 4 inch exhaust, EGR delete, AirAid

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post #8 of 10 Old 03-21-2017, 05:48 AM
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Checked my truck this morning and it idles about 800 rpm according to the factory tach.
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post #9 of 10 Old 03-21-2017, 07:13 AM
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I have a stock 2001 f350 6 speed, in warm weather or warm engine, it idles at 650 rpm according to the readout on my rpm controller. When the engine is cold, it will automatically idle up to 900-1400. Idled up rpm seems to depend on temperature, the colder it is, the faster it turns.
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post #10 of 10 Old 03-22-2017, 10:17 AM
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Normal idle on a stock truck, when it is up to temp, should be around 680 RPM. Give or take a little bit.

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