Idle Question
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Tuned
Joined: Jul 2010
Posts: 369
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Idle Question
In the Powerstroke book it says that the truck is equipped with a system that will automatically idle up the engine as need during extended idle times as long as the truck is in Park with the parking brake set. It then goes on to talk about an aftermarket idle system. Can anyone explain?
Couple other things.
I don't see where it mentions using a radiator cover even in really cold weather? Not needed I guess.
What fuel treatment do you guys plan to use to prevent fuel gelling that will comply with Ford warranty?
Couple other things.
I don't see where it mentions using a radiator cover even in really cold weather? Not needed I guess.
What fuel treatment do you guys plan to use to prevent fuel gelling that will comply with Ford warranty?
Cargo Master
Joined: Dec 2007
Posts: 2,196
Likes: 120
From: Carstairs Alberta
what year and engine type. yes the engine will idle up in park, but only until the oil temp comes up to a certain temp. which doesn't do any good if you need to leave it idle for a longer period of time. on the auto trans you can tap into the pto electrical circuit and then it will stay at 1200 until it runs out of fuel. higher rpm's + closer to normal cylinder temp, better oil pressure, less clogging in the egr and some other benefits. better A/C or better heat in winter. radiator cover isn't really needed unless you live in Alaska. any engine with an air to air inter cooler needs to keep a significant portion of the intercooler open to airflow or not so good things happen in the long term(inter cooler to hot and cracks, poor power and less economy)
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Tuned
Joined: Jul 2010
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Does anyone care to guess what a save limit would be at idle?
This truck will be used for snow removal and if I use it on my residential routes I normally leave the truck running all day/night because we are in and out of them constantly.
This truck will be used for snow removal and if I use it on my residential routes I normally leave the truck running all day/night because we are in and out of them constantly.
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 83
I put a 12,000 ohm resistor to provide 1,400 RPM.
More than enough for summer but I guessed it would be about right for winter.
I don't use high idle enough for it to be an issue and it's there when I do need it.
I just keep track of the idle hours using the built in start/stop clock. The manual stated 1 hour of idle is estimated 25 miles but I'm sure that's base idle at 600 RPM and not high idle.
Remember, when you have SEIC enabled, the DPF cannot regenerate so make sure that switch is off when you're driving plus I think you have to be above 35 MPH anyways (with the SEIC switch off). I would have concerns about plugging the DPF fairly quickly leaving it running all the time and low speed snow plowing not allowing proper regens.
I don't snow plow (never enough snow here) so I'm simply guessing at the speed.
More than enough for summer but I guessed it would be about right for winter.
I don't use high idle enough for it to be an issue and it's there when I do need it.
I just keep track of the idle hours using the built in start/stop clock. The manual stated 1 hour of idle is estimated 25 miles but I'm sure that's base idle at 600 RPM and not high idle.
Remember, when you have SEIC enabled, the DPF cannot regenerate so make sure that switch is off when you're driving plus I think you have to be above 35 MPH anyways (with the SEIC switch off). I would have concerns about plugging the DPF fairly quickly leaving it running all the time and low speed snow plowing not allowing proper regens.
I don't snow plow (never enough snow here) so I'm simply guessing at the speed.
New User
Joined: Oct 2007
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Fast idle just stopped working?
I have 2001 F250 7.3 powerstroke, my fast idle always worked even in the summer months, now here in New England the nights are already in the 30's I can't get it to come on anymore at all. Even if I let it idle for ten minutes it never races up. I replaced both my batteries, and let the truck sit for about ten hours with not hooked up. Since then it won't work. I have no code or check engine light and its been running for about a week now, I would think that should be long enough for the PCM to reset itselfs, any thought I am out of idea's thanks all
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Mountain Pass
Joined: Dec 2009
Posts: 224
Likes: 7
From: Regina, Saskatchewan
I believe the job 2 xl and xlt will have a provision to allow the operator to command a manual regeneration at idle. Otherwise I don't know how well the DPF is going to tolerate continuous low speed operation and all day idling. Let us know how it works out.
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Lead Driver
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The OP is talking about high idle on a 2011 6.7L.
If you have a 2001 7.3L, you do not have a DPF so your truck has never gone through a regeneration of the DPF.
I don't have any experience with the 7.3L (other than as a passenger) but I don't think SEIC was available until 2004 or 2005 models.
Do you have a aftermarket switch that you activate to high idle or does the truck computer automatically do this?
For some reason I seem to remember reading the 7.3L would idle up when cold if needed but don't quote me on that.
Anyways, since you have a 2001, I would suggest posting your issue over in the 7.3L section of the forums. Current and previous owners of the 7.3L would be much more assistance to you. There is a lot of activity in that section.
1999 - 2003 7.3L Power Stroke Diesel - Ford Truck Enthusiasts Forums
Mountain Pass
Joined: Dec 2009
Posts: 224
Likes: 7
From: Regina, Saskatchewan
I have 2001 F250 7.3 powerstroke, my fast idle always worked even in the summer months, now here in New England the nights are already in the 30's I can't get it to come on anymore at all. Even if I let it idle for ten minutes it never races up. I replaced both my batteries, and let the truck sit for about ten hours with not hooked up. Since then it won't work. I have no code or check engine light and its been running for about a week now, I would think that should be long enough for the PCM to reset itselfs, any thought I am out of idea's thanks all
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