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Cold weather- length of warm up time

Cold weather- length of warm up time

Postby The Sierra Kid 22 [OP] » Sep 27 2013, 1:47am

It's almost that nippy time of year again here in PA.. my question is how long do I let my truck warm after cold starting it in the morning when its below freezing..until the idle goes down (normal conditions) or longer? Also I never use the remote start. -mike
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Re: Cold weather- length of warm up time

Postby ASTE25ASTE25 is online! » Sep 27 2013, 1:51am

I'd just let it run until the idle goes down if it's really cold. Really, once the oil gauge goes up to normal (which should be immediatly) is is good to drive.
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Re: Cold weather- length of warm up time

Postby silverado9306 » Sep 27 2013, 1:51am

I let mine idle down to about 700ish rpms. Unless the windows are frosted up.

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Re: Cold weather- length of warm up time

Postby MuleSkinner » Sep 27 2013, 1:55am

With my old 5.3L I'd usually wait until the idle dropped to a more regular speed. Sometimes I'd go off of the temp gauge, but that obviously takes longer. I'm sure the second option is better for the truck, but I'd think that the first wouldn't cause any major problems.
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Re: Cold weather- length of warm up time

Postby Mdsjohna » Sep 27 2013, 2:01am

I let the idle drop down a tad and then drive very easy until it starts to warm up.


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Re: Cold weather- length of warm up time

Postby The Sierra Kid 22 [OP] » Sep 27 2013, 2:04am

Good advice, also Ive been told its bad for the engine if you fire it up let it idle for too long.
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Re: Cold weather- length of warm up time

Postby starspangled6.0 » Sep 27 2013, 2:06am

Typically I let my trucks idle for 1-2 minutes, and then start driving. Driving (gently at first) will warm it up much quicker then idling will. The Duramax has a high-idle feature, where it idles at something like 1200 RPM and builds up a ton of boost in the turbo. Check out the video:


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Re: Cold weather- length of warm up time

Postby silverado9306 » Sep 27 2013, 2:10am

^^my old powerstroke had the high idle and that thing sounded like a jet taking off lol...
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Re: Cold weather- length of warm up time

Postby The Sierra Kid 22 [OP] » Sep 27 2013, 2:24am

Damn that did sound like a Boeing 747 about to lift off lol and plow some serious snow.
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Re: Cold weather- length of warm up time

Postby 19trax95 » Sep 27 2013, 2:34am

I have been letting mine idle for about 2min lately. But the coldest it's gone so far is 38*. I'm in PA so it does get cold in winter. Last winter I noticed that when it got cold (in the 20's or less) the truck didn't like to shift until the transaction warmed up. It would go into drive and all fine but it would stay in first forever than shift.
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