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08-10-2007, 10:36 PM
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Hummer Veteran
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Join Date: Mar 2007
Posts: 51
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Engine Temperature
My H3 engine temperature climbs to 3/4 on the dial in traffic. Outside temp here is ussually 37 C = 98.6 F. Coolant mixture = 30 % coolant 70% water (the good kind).
I don't like constant swings in engine temperature. I would like to keep the dial permanently in the middle. My previous cars did this effortlessly.
Any suggestions? Has anyone replaced the clutched fan for an electric one?
__________________
Victory Red 2006 H3 Luxury, Automatic, OEM steps, Sunroof. MODS: Torsion bars 4X, Front Bilstein shocks, Front adjustable swaybar links, Rear Rancho shocks, rear 6.5 inch shackles, Rear Quick disconnects swaybar links, Black rims, Hidden hitch, Husky mud flaps, Trasko spin on filter, No intake resonator, Enlarged 3" snorkel opening, No muffler
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08-10-2007, 11:39 PM
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Hummer Guru
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Join Date: Jul 2006
Location: Stouts Creek
Posts: 4,192
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Re: Engine Temperature
Keep an eye on your coolant levels. The electric fan could effect your battery life and possibly warranty issues.
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"For God so loved the world he gave his only son that whoever believe in him would not perish but have everlasting life. "
(John 3:16)
2006 H3 Slate Blue,Header,Jacked,CAI,Toyo35's,HHO.
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08-11-2007, 04:43 AM
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Hummer Veteran
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Join Date: Jul 2006
Location: PA, Back in the deep mountains, away from stupid people!!
Posts: 155
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Re: Engine Temperature
Quote:
Originally Posted by wpage
Keep an eye on your coolant levels. The electric fan could effect your battery life and possibly warranty issues.
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Dump the OEM battery, get a coil battery to start. Coolant has to be 50/50, and adjusted to season that your are driving in.
If your stuck in traffic, shut off the A/C.
If your idle, the A/C can not reboot. This will send your temp dial to the sky.
Ask any soldier that has been to Iraq if they had A/C in their Hummer.
Some will say yes, that's because they were driving, not in idle. Others will say no, because they were in idle.
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black 06 H3, tow package, monsoon, no bling bling, all the off road stuff... I even have the off road stuff that your mother warned you about.
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http://themetalpeddler.com
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08-11-2007, 04:59 AM
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Hummer Veteran
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Join Date: Oct 2006
Location: Abu Dhabi - UAE
Posts: 67
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Re: Engine Temperature
My '07 runs constantly up to the 3/4 mark during the Arabian summer however never gets any higher than that, and we are talking 48 degrees celcius ambient temp in town. Out in the desert it frequently tops about 55 celcius but very little relative humidity and so far have not experienced an AC shutdown owing to high engine temp.
Ran a test last year with my '06 H3 and a guy from GM in his H3 in a mad heat of 56 degrees all afternoon with the AC on with no overheating issues so I guess you can say they got it right with the cooling system.
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Black Sheep Hummer Squadron
Arabian Gulf Chapter
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08-11-2007, 01:05 PM
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Hummer Veteran
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Join Date: Mar 2006
Posts: 148
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Re: Engine Temperature
Quote:
Originally Posted by hummerabia
Ran a test last year with my '06 H3 and a guy from GM in his H3 in a mad heat of 56 degrees all afternoon with the AC on with no overheating issues so I guess you can say they got it right with the cooling system.
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lol 56degrees is cold! atleast it is to me
oops my mistake, your talking celsius
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2007 Black H3, Adventure Package, Chrome Appearance, Chrome Cross Bars, Moonroof, Tow Package, Chrome Tubular Assist Steps. "My golly, this is by far the best looking 2007 H3 you will ever never witness"
My H3 is gods gift to man.
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08-11-2007, 01:31 PM
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Re: Engine Temperature
There's no guage reading on the Thermostat, so it is difficult to determine what the actual temperature is in the cooling system.
That said, the guage does show a very small red area at the top so it would appear to me, that anywhere but the red area would be a normal operating temperature.
When we were getting the hot humid blast of air, over the last two weeks, I was noticing my guage creeping up towards the 3/4 mark as well.
This was only while the vehicle was stopped.
Once on the move the radiator cooled things off relatively fast. the needle crept back down, and hovered just above the center.
Now with the cool weather the rain brought, everything is back to sitting in the middle.
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08-12-2007, 01:58 AM
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Hummer Authority
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Join Date: Mar 2006
Location: Chicago, IL
Posts: 1,086
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Re: Engine Temperature
Quote:
Originally Posted by hummer_metal
If your stuck in traffic, shut off the A/C.
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Are you mad man? what you are advocating is suicide! Roadrage will be at an all time high. id rather my truck being 210 F than me being 210 F . warranty can cover it, but id be dead.
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08-13-2007, 01:20 PM
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Hummer Veteran
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Join Date: Mar 2007
Posts: 51
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Re: Engine Temperature
Quote:
Originally Posted by NEOCON1
my 06 runs at half on the temp gauge
even when its 112* outside
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your temperature gauge is defective.
__________________
Victory Red 2006 H3 Luxury, Automatic, OEM steps, Sunroof. MODS: Torsion bars 4X, Front Bilstein shocks, Front adjustable swaybar links, Rear Rancho shocks, rear 6.5 inch shackles, Rear Quick disconnects swaybar links, Black rims, Hidden hitch, Husky mud flaps, Trasko spin on filter, No intake resonator, Enlarged 3" snorkel opening, No muffler
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08-13-2007, 08:03 PM
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Hummer Expert
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Join Date: Jan 2007
Location: Southern Cali
Posts: 652
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Re: Engine Temperature
muffler bearings.
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'06 Luxury Adventure
'99 Toyota 4runner 4x4
'71 FJ40
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08-11-2007, 12:14 AM
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Hummer Professional
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Join Date: Jun 2007
Location: SoCal
Posts: 456
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Re: Engine Temperature
Quote:
Originally Posted by Stevenblanca
My H3 engine temperature climbs to 3/4 on the dial in traffic. Outside temp here is ussually 37 C = 98.6 F. Coolant mixture = 30 % coolant 70% water (the good kind).
I don't like constant swings in engine temperature. I would like to keep the dial permanently in the middle. My previous cars did this effortlessly.
Any suggestions? Has anyone replaced the clutched fan for an electric one?
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Interesting...I have the same experience - on very hot days my needle sometimes gets to 3/4 dial as well; I also wonder whether is it normal. My previous cars used to have pretty much stable readout with only slight increase. Maybe the H3 dial is just more sensitive then other vehicles, more responsive?
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2007 Black H3, 33" BFG Mud Terrains
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08-11-2007, 03:29 AM
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Hummer Authority
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Join Date: Oct 2005
Location: Atlantic City NJ
Posts: 1,453
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Re: Engine Temperature
Mines never gone to 3/4 (2007). It has moved slightly over 1/2 and or between 1/2 and 3/4 on very hot days.
Also..haven't checked the manual.. but I think your mixture should be ...50%/50%. The Anti-Frezz is also a coolant.
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08-11-2007, 04:00 AM
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Hummer Veteran
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Join Date: Nov 2006
Location: North Central Texas
Posts: 157
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Re: Engine Temperature
A lot of people are wondering about operating temps. This is the
3rd forum I've seen it on this week. (I'm a whore and I know it)
My factory gauge does the same...1/2 to 3/4.....
My Scan Gage II however, shows the actual coolant temp to be in the 190 to 210 range.
210 came at 16:00 hours, 97 degrees ambient temp, stuck on I-20 in a traffic jam with A/C set on Antarctic.
Factory gauge was almost touching the 3/4 mark.
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