My truck is idling high with the H&S mini maxx.

[Black Power Stroke]

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!

[08stroker250]

What are the outside temps?

[Black Power Stroke]

Originally Posted by 08stroker250

What are the outside temps?

Much colder than it has been. 40s in the morning and 60s during the day.

[08stroker250]

Is it doing it all the time, or only in the cold mornings?

[Black Power Stroke]

Originally Posted by 08stroker250

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.

[08stroker250]

Sounds like cooler weather high idle to me.

[6.4_twins]

08stroker250 Sounds like cooler weather high idle to me.

Ditto on that.

[Black Power Stroke]

So would it do this stock as well?

[MississippiJoe]

yup, mine did that when it was stock.

[clutchdabomb22]

ya its just the cold! happened to me last night, no worries!