low running temps - Chevy and GMC Duramax Diesel Forum

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post #1 of 33 (permalink) Old 11-12-2012, 05:47 PM Thread Starter
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low running temps

tranny runs 125*
engine runs 185*

think i need to partially block the front end?

summer time is Ok, 200* engine and 160* tranny..
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2006 1 ton 4X4 w/t..but i do have a ranchhand front bumper and hummer wheels!!
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post #2 of 33 (permalink) Old 11-12-2012, 06:00 PM
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I have the same issues with my truck. The cooler tranny temps I am okay with but I am seeing on average 176 degree coolant temps since the ambient temp dropped. My truck will dip into the upper 160s on occasion and struggle to get back up. So far I have tried a little longer warm up in the morning and even started plugging her in but I still have the same issues. I just picked up a stock winterfront and I am going to run it on the grill to see if I can bring those temps up.

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post #3 of 33 (permalink) Old 11-12-2012, 06:23 PM Thread Starter
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dude, let me know it it works...

2006 1 ton 4X4 w/t..but i do have a ranchhand front bumper and hummer wheels!!
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post #4 of 33 (permalink) Old 11-12-2012, 06:27 PM
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Being here in the Pacific NW, I run a winter front when tems drop down to 55 and lower. I made my own from a BBQ grill cover from Wal-Mart ($15). Its 15 miles to work and she warms up quite a bit quicker.

Two weeks ago I went on an hunting trip over Tonasket WA, 600 miles round trip. Ran the grill cover the entire time, no trailer, 65 mph average speed on I90. Coolant temps 185-220. IAT 100-140, 130-140 going over Tiger, Snoqualmie, and Blewett passes. Fan kicked on a few times for a mile or so. Coming back half way up Snoqualmie it kicked on for a few miles...pulled over and opened up the transcooler holes and it never came on againg. 21 mpg average on winter blend diesel.


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post #5 of 33 (permalink) Old 11-12-2012, 06:29 PM
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Quote:
Originally Posted by cessna150 View Post
dude, let me know it it works...
Alright. We are supposed to have lows in the mid-twenties and highs in the mid-forties this week. Its not real cold but I should see increased operating temperatures.

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post #6 of 33 (permalink) Old 11-12-2012, 06:38 PM Thread Starter
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im wondering now if theres a grill cover behind my rear seat...........

2006 1 ton 4X4 w/t..but i do have a ranchhand front bumper and hummer wheels!!
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post #7 of 33 (permalink) Old 11-12-2012, 06:49 PM
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Yeah, they come stock with the winterfront but unfortunately the previous owner didn't feel it necessary to include it when he traded the truck in so I had to buy another.


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post #8 of 33 (permalink) Old 11-12-2012, 06:53 PM Thread Starter
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ive never looked..i bought mine new...in fact on another diesel site i talked to a guy that worked at the chevy truck plant..he told me when my truck went down the line..that was coOl.

2006 1 ton 4X4 w/t..but i do have a ranchhand front bumper and hummer wheels!!
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post #9 of 33 (permalink) Old 11-12-2012, 08:41 PM
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IIRC the Duramax manual says the grille cover doesnt need to be on unless its 0F or colder.
I myself put my cover on when its in the low 20s-low teens.

The grille cover is a standard/required option on all truck orders with the following ship to locations: Maine, New Hampshire, Vermont, Minnesota, North Dakota, South Dakota, Montana, Alaska, Idaho, Wisconsin, Wyoming, Michigan, Colorado and New York.

Otherwise its an available option thats added.


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post #10 of 33 (permalink) Old 11-12-2012, 10:14 PM
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yea i gotta find my winterfront as well

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