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High idle mod and remote start?

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Old Nov 11, 2014 | 05:52 PM
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High idle mod and remote start?

Ok got my switch all sorted and installed test everything works well with the high idle enabled. My question is how long do you guys wait after starting the truck to kick it on? I I use my remote start it starts normally the. After a few seconds kicks up. Is it ok to leave the switch on and remote start or am I going to damage something when it's cold out upping the idle pretty much right away after a cold start?
 
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Old Nov 11, 2014 | 05:56 PM
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With remote start, I would let nature take it's course. Let the engine idle it's self up.
 
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Old Nov 11, 2014 | 06:51 PM
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So I need a time delay relay to put in there so it can run for 3-5 min then up the idle. The whole idea is to NOT go outside in the fridged temps while waiting for the truck to get warm to take the kids to school and head to work.
 
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Old Nov 11, 2014 | 07:23 PM
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At colder temps, outside air amd coolant, it will idle itself up. You don't need to run the high idle when it's cold, it will do that by itself. Anything below about 20 f amd mine idles up on remote start, it waits a fair bit before it does, seems like a long time but I think you should just remote start and see what she does. Are you parking inside or out, why not plug in a block heater, cheaper than using diesel. I get between 110 and 120 f out of coolant on the he block heater. That would take a long time on a cold day running at high idle.
YMMV
 
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Old Nov 11, 2014 | 08:16 PM
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You could use a DEI 528T Pulse Timer Relay to delay the start. Its adjustable so you can set it to a minute or two. Another option is to use an aux channel to trigger the high idle. (+ latched output) Most remote start units have additional channels that can be set up to output + or - momentary or latched (latched stays on until you hit button again).
 
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Old Nov 11, 2014 | 08:43 PM
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Originally Posted by mhoefer
At colder temps, outside air amd coolant, it will idle itself up. You don't need to run the high idle when it's cold, it will do that by itself. Anything below about 20 f amd mine idles up on remote start, it waits a fair bit before it does, seems like a long time but I think you should just remote start and see what she does. Are you parking inside or out, why not plug in a block heater, cheaper than using diesel. I get between 110 and 120 f out of coolant on the he block heater. That would take a long time on a cold day running at high idle.
YMMV
It does self file up but barely maybe 850 rpms. When it's under 20 I do plug in but have never seen temps as high as you mention. Mid 80's tops. But then I usually only have it on three hours or so.

Outside is where it gets parked. I am actually considering a circulating coolant heater like my father in law uses on his dt466's. If it was just me I wouldn't worry about it get coolant temps to 100/110 and roll out. But the 6 and 7yr olds like heat.
 
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Old Nov 11, 2014 | 09:37 PM
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I personally wound't leave the high idle switch on when remote starting due to possible lack of immediate lubrication right after startup.
 
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Old Nov 11, 2014 | 10:08 PM
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Originally Posted by diverseth
You could use a DEI 528T Pulse Timer Relay to delay the start. Its adjustable so you can set it to a minute or two. Another option is to use an aux channel to trigger the high idle. (+ latched output) Most remote start units have additional channels that can be set up to output + or - momentary or latched (latched stays on until you hit button again).
After reading up on your suggestion I am going to time when the truck self idles up for a few weeks in different temps. The pulse timer goes up to 90sec. If the truck self idles in 90sec or less ill put one in. Otherwise there are other ones that you can set for longer. It just seems like the truck takes forever to warm up at the factory programing.
 
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Old Nov 12, 2014 | 07:54 AM
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Originally Posted by mhoefer
Anything below about 20 f amd mine idles up on remote start, it waits a fair bit before it does, seems like a long time but I think you should just remote start and see what she does
The PCM may trigger a high idle when the ambient air temp is below 40F. The PCM looks for several variables (air temp, oil temp, coolant temp and a signal that oil pressure is present) before it will idle the engine up. Yes, you can override it with your foot; but I'm pretty sure the PCM will over ride the "high idle" command since it has to go through the PCM. Maybe I'm wrong on that one.
Originally Posted by Ford_Fan1
I personally wound't leave the high idle switch on when remote starting due to possible lack of immediate lubrication right after startup.
The PCM will over ride the high idle command.

Personally, I would use a block heater on a three hour timer; then hit the remote start. Yes, the high idle will warm the engine up...but the amount of diesel your dumping out the exhaust gets expensive quick.
 
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Old Nov 12, 2014 | 04:48 PM
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Originally Posted by zhilton
The PCM may trigger a high idle when the ambient air temp is below 40F. The PCM looks for several variables (air temp, oil temp, coolant temp and a signal that oil pressure is present) before it will idle the engine up. Yes, you can override it with your foot; but I'm pretty sure the PCM will over ride the "high idle" command since it has to go through the PCM. Maybe I'm wrong on that one.The PCM will over ride the high idle command.

Personally, I would use a block heater on a three hour timer; then hit the remote start. Yes, the high idle will warm the engine up...but the amount of diesel your dumping out the exhaust gets expensive quick.
I do use the block heater when under 20*F or so but it still takes time to get the heat going for the kids. And as far as ice an snow I ain't scraping no ice!! It can run a tad longer.
 
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Old Nov 12, 2014 | 05:03 PM
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The pulse timer goes up to 90sec and you can run more than one to get a longer delay. They only cost about $12 each.
 
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