12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

cold start beliefs

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Old Nov 13, 2012 | 10:28 PM
  #1  
yfzrunner's Avatar
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From: dfw tx
Default cold start beliefs

So i have been doing some research and some people say its bad to just let your truck idle up to warm temp. I figured it was good but they said just need oil into the turbo so just baby it until it warms up something to do with not getting fuel i guess to the fuel pump not sure. What are your guys input. And it is a 12v if theres a difference.
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Ok so i came to the conclusion i need to someway and somehow get a high idle switch in this thing are just use the classic seat to pedal stick and keep it at about 700-800 rpms. But now i know to do this on the first start up and while long sitting and maybe sleeping in truck how about in bumper to bumper traffic do i need to worry and keep trying to keep the idle up are no. Also is this mainly for cold weather starts are at all time.
 

Last edited by yfzrunner; Nov 13, 2012 at 10:29 PM. Reason: Automerged Doublepost
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Old Nov 13, 2012 | 10:31 PM
  #2  
tiremann9669's Avatar
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From: Dansville NY
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In the cold at idle the cylinders don't build up enough heat to completly burn all the fuel, then the fuel washes down the cylinder walls. High idle is good
 
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Old Nov 14, 2012 | 06:28 AM
  #3  
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From: dfw tx
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ah so really a concern in the cold but eather way if sleeping in truck high idle is still required in the summer sorry guys i am a newb just trying to do it right. And im thinking of using a carb high idle solinoid with a 12v wire to switch.
 
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Old Nov 16, 2012 | 02:52 PM
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High idle solenoid is a good idea. I just start it, run it at about 900rpm for about a minute and go. Never had a problem. Just baby it till it's warmed up, that's what I do (although i live in the middle of bfe where there are no stops and nobody carse if i putt down the road at 25-30...)
 
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