My truck is idling high with the H&S mini maxx. - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 10-04-2010, 07:50 PM Thread Starter
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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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post #2 of 13 Old 10-04-2010, 07:53 PM
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What are the outside temps?

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #3 of 13 Old 10-04-2010, 08:14 PM Thread Starter
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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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post #4 of 13 Old 10-04-2010, 08:15 PM
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Is it doing it all the time, or only in the cold mornings?

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #5 of 13 Old 10-04-2010, 08:27 PM Thread Starter
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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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post #6 of 13 Old 10-04-2010, 09:14 PM
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Sounds like cooler weather high idle to me.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #7 of 13 Old 10-05-2010, 03:10 AM
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08stroker250 Sounds like cooler weather high idle to me.

Ditto on that.

08 F250 KR minimaxx AFePG7 5" straight pipe "SOLD"
08 F250 KR coming later this week
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post #8 of 13 Old 10-05-2010, 07:12 AM Thread Starter
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So would it do this stock as well?
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post #9 of 13 Old 10-05-2010, 07:14 AM
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yup, mine did that when it was stock.

2008 F250 FX4
H&S Black Maxx
S&B CAI
"Stock" Exhaust....in the shed
Recon Lights here and there

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post #10 of 13 Old 10-05-2010, 12:53 PM
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ya its just the cold! happened to me last night, no worries!

2010 sti

08 f250
Airaid intake, black max, 5" turbo back (dpf delete)off road only ofcourse
Tint, brushgaurd piaas, hid upgrade, piaas in the back, piaa fogs, lots more and more to add. Any suggestions?
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