Cold start highidle feature
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Freshman User
Joined: May 2013
Posts: 36
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From: Anchorage, AK
Cold start highidle feature
Hey guys hope your trucks are performing the way you want them to. I have a quick question. Does the 2011+ super duty that has a factory automatic start idle high when its really cold outside. I haven't had my new truck in the winter yet but a buddy of mine has and excursion along with a f350 and after he starts it they start to idle fast. Is this a feature that comes standard in super duties or is there some kind of reprogramming that needs to be done for that to work. Just need some info on that cause I would like to set up an appointment with my local dealer in Alaska before I get back from my deployment. Thanks in advance for any info you are able to give me.
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Joined: Aug 2003
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From: Isanti, MN
It's part of the factory programming to high idle under those conditions. There is a high idle circuit that many connect to one of the upfitter switches, but I really don't see the need. I started mine once at -10° without the block heater, and it went straight to 1,200 RPMs. After about ten seconds I put it in drive and drove away.
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lawdawg79
1999 - 2003 7.3L Power Stroke Diesel
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Oct 19, 2015 09:14 AM
