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Archive: Technical Info: 3rd Generation This forum has now been closed to replies and new posts, but can still be searched and read. Please post new threads in one of the new 3rd Gen technical Forums. Archive contains Technical discussions and questions relating to third generation (2003 - 2006) trucks.
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Old 01-31-2006
mitch89445 mitch89445 is offline
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Default miss on cold start?

I have an 06 that when started cold acts as if its an old gas rig for a little while if I give it throttle it seems to smooth out any ideas?
Seems like its sucking air.
06 3500 4x4 Laramie srw lb no muffler cold air inlet tag Jacobs Brake
2007.5 Quad cab sb 4x4 6.7 6 sp auto big horn
Old 01-31-2006
Drew Drew is offline
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Default Re: miss on cold start?

sounds normal. my 04 will run nasty rough and blow thick white smoke for a few seconds when the temp is in the 20's or lower.

from what I'm told the engine is only fireing a few injectors at a time to slowly heat the cylinders up. or something like that. if you give it a few seconds of running on it's own it will even out.

scared the crap out of my as well the first time mine did that. though I had a few injectors gelled up or the CPS wasnt reading right.
04.5 600 6spd QC 4x4 off road package. intake baffel, silencer ring, and kitty MIA
Old 01-31-2006
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Default Re: miss on cold start?

Yes sounds normal especially if the high idle is enabled. It has a 3 cylinder drop during warm up. [img]/forum/images/%%GRAEMLIN_URL%%/cool.gif[/img]

Old 01-31-2006
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Default Re: miss on cold start?

I've noticed that too, when in the 20's and below. First time you hear it, you kind of have that turned dog head, or deer in the headlight look [img]/forum/images/%%GRAEMLIN_URL%%/eek.gif[/img]
04 Laramie (H) 2500 HO QC 4X4 48RE 3:73 LS Putco Boss Bars LineX AFE Stage II Silver Stars 956 Moto's high idle ROKK sensor FASS MagHytec Diffs & DD trans pan

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Old 01-31-2006
swansong04 swansong04 is offline
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Default Re: miss on cold start?

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">Originally posted by MAXTORQ:
Yes sounds normal especially if the high idle is enabled. It has a 3 cylinder drop during warm up. [img]/forum/images/%%GRAEMLIN_URL%%/cool.gif[/img] </div></div>interesting i didnt know that .. last weekend was up work at my buddies cabin and my truck sat for 3 days in -12C weather and when i went to start it up it blew white/black smoke and sputtered like crazy and then ideled up to about 1200rpm and all was good .. ..
04.5 3500 SLT/QC/SRW/4X4 48RE Patriot blue/bright Silver 315 70 R 17" BFG AT'S 3.73's sirIus radio alpine 9833 phantom gauges , BHAF ,quad xzt , juice with attitude / stacked with quads xzt date of mfg. june 12th 2004

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