My truck is idling high with the H&S mini maxx. - Ford Powerstroke Diesel Forum
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Old 10-04-2010, 08:50 PM
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My truck is idling high with the H&S mini maxx.

Truck will idle right for maybe 30 seconds or so and then it will start idling high. Right under 1000 rpm. If you hit the peddle just for a second it it will come out of for awhile and then it will eventually idle high again. Any ideas? Truck has 5k on it and has had the H&S for about 4k miles and has never done this until the last 500 miles or so. Any help is greatly appreciated!
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Old 10-04-2010, 08:53 PM
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What are the outside temps?
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Old 10-04-2010, 09:14 PM
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Quote:
Originally Posted by 08stroker250 View Post
What are the outside temps?
Much colder than it has been. 40s in the morning and 60s during the day.
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Old 10-04-2010, 09:15 PM
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Is it doing it all the time, or only in the cold mornings?
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Old 10-04-2010, 09:27 PM
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Quote:
Originally Posted by 08stroker250 View Post
Is it doing it all the time, or only in the cold mornings?
Well morning is when i let it idle the most warm up. I will try and see later in the day tomorrow.

Whats odd is that it idles normal for a while. And will idle normal again for a while after you tap the throttle.
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Old 10-04-2010, 10:14 PM
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Sounds like cooler weather high idle to me.
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Old 10-05-2010, 04:10 AM
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08stroker250 Sounds like cooler weather high idle to me.

Ditto on that.
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Old 10-05-2010, 08:12 AM
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So would it do this stock as well?
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Old 10-05-2010, 08:14 AM
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yup, mine did that when it was stock.
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Old 10-05-2010, 01:53 PM
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ya its just the cold! happened to me last night, no worries!
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