Idling in cold weather? - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 02-13-2012, 05:46 AM Thread Starter
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Idling in cold weather?

Last night it dropped down to 25 and it snowed so I thought I'd start my truck and let it idle for about 15 minutes and when I walked back outside it sounded like it was about to die so I turned it off and restarted it and it was fine but didn't sound good.

Is it bad let the 6.4s idle?? Straight pipe and Spartan tuned if that makes any difference.

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2008 F250 CCSB
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post #2 of 8 Old 02-13-2012, 07:52 AM
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Did you check for codes? You sure it just wasn't surging in high idle? That's pretty common for tuned 6.4's.

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 8 Old 02-13-2012, 07:56 AM
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My truck idles ALOT! Never had that issue. Were you using the standard high idle, or do you have a high idle hooked up to your upfitters? Sometimes my truck will make a very minor loping sound if it has been idling in the standard high idle for more than 20 min. If I kick the upfitter switch high idle on which bumps the RPM's up another 200 rmp or so it will go away.

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post #4 of 8 Old 02-13-2012, 11:19 AM Thread Starter
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i dont have a high idle mod.

2008 F250 CCSB
Gearhead Hot Street
No limit intake and Cold Side Pipe
EGR Delete
CCV Mod
5" Flo Pro
Ranch Hand
35" Nittos

Texas A&M Construction Science

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post #5 of 8 Old 02-13-2012, 04:05 PM
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I idle alot as well, and as Jeff mentioned does surge when its cold. (25 isnt cold either btw )

2008 Job 3, F350, 6.4/drw/lariat/CC/LB, Spartan, Viper 5902, Line-X, Flo-pro egr delete, aFe stage 2 proguard 7, MBRP Cool Duals/downpipe/CAC, CCV mod, coolant filter PMF 7" 4link, Rigid Dually fogs, Royalty Core 3pc, Crown brake lines, Mishimoto Rad
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post #6 of 8 Old 02-13-2012, 04:09 PM
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My truck idles alot in the winter time. Its fine. At 25 though you don't even have to worry about it. Don;t even have to plug it in. 25 is warm.

2013 CCSB Lariat Ultimate 6.7

"It is possible to store the mind with a million facts and still be entirely uneducated." --Alec Bourne
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post #7 of 8 Old 02-13-2012, 04:47 PM
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I'm not even sure it really needs plugged in. I've cranked it over in the morning at -10, at 5 at 15 like both days this weekend, at 30, 45, 55. It cranks the same at any of those temps on mine. I guess below -10 things can change drastically but most don't deal with those numbers often.


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post #8 of 8 Old 02-14-2012, 05:18 AM
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If you can plug it in, it is better for the motor in the long run, but if you cant the truck will still start.

2015 F350 Ruby Red Platinum, SRW CCLB, Color matched Ranchhands, rigids.


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