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Go Back   Hummer Forums by Elcova > Hummer H3 Discussion Forums > General H3 Discussion

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  #1  
Old 01-31-2007, 05:06 PM
whaaaaT whaaaaT is offline
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Default cold!

Anyone notice if you jump in the H3 after its been sitting in the cold for a long time it goes slower than any other car you've ever driven? I've also noticed that sometimes if you floor it and truck downshifts in cold weather your temp will actually drop like a quarter. This was on the highway with the heat on in recirculate.
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Old 01-31-2007, 05:32 PM
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Default Re: cold!

You are letting the oil temp get up to par right? If its really cold you should let it warm up for several minutes before jumping on it. I also spend a lot of time cold weather (20 degrees and below), and I have never seen the temp gauge drop at all when Im driving. It changes slightly from time to time, but not suddenly.
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  #3  
Old 01-31-2007, 05:40 PM
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Default Re: cold!

Yea, best not to thrash it until it's warmed up.
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Old 02-01-2007, 03:33 AM
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Default Re: cold!

Mine does that. I got on it the other night and the engine temp droped half way in less than a quarter mile. I think this is because the coolant moving through the engine faster at higher rpm. Also if you drop it down to third the temp will drop a little bit. I noticed this with my trailer. Look at my other thread.
http://www.elcovaforums.com/forums/s...t=coolant+temp
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  #5  
Old 02-01-2007, 08:10 AM
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Default Re: cold!

yes it's normal for the temp gauge to drop when it's cold. Usually it will be at a level and when I hop on the interstate and get up to 70 or so it will drop some until I've gone a few miles. An yes, I let my engine warm up until it reaches it's idle rpm. It's just due to a rush of cold air around the sensor.
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Old 02-01-2007, 02:26 PM
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Default Re: cold!

Hmm, Hadn't noticed. It's been getting down to single digits in the past few weeks. Expect the same this weekend. 2 words - Block heater!
I must say, I am pretty easy on the engine while it's cold.
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Old 02-01-2007, 10:33 PM
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Default Re: cold!

Quote:
Originally Posted by blindzebra
An yes, I let my engine warm up until it reaches it's idle rpm. It's just due to a rush of cold air around the sensor.
I sure hope everyone lets their rig warm up, you never know though I am confused by the cold air around the sensor statement. Engine temps should be read internally by the thermostat which reads water temp. Unless you mean the rush of cold air into the radiator, in which case doesn't seem like it would register colder temps immediately, although in the cases said here it seems as though it does. This is more of a questioning statement looking for affirmation, not trying talk sh!t, blindzebra.
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Old 02-02-2007, 03:06 AM
whaaaaT whaaaaT is offline
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Default Re: cold!

Quote:
Originally Posted by raptorman53
Mine does that. I got on it the other night and the engine temp droped half way in less than a quarter mile. I think this is because the coolant moving through the engine faster at higher rpm. Also if you drop it down to third the temp will drop a little bit. I noticed this with my trailer. Look at my other thread.
http://www.elcovaforums.com/forums/s...t=coolant+temp


Hey your definatley right. I put it in 3rd for maybe half a block and the temp dropped really fast. You'd think itd be opposite. Guess it just just pumps faster at higher rpms like you said. hmmm.
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Old 02-02-2007, 04:36 AM
Joeyoshi Joeyoshi is offline
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Default Re: cold!

MY truck will do it when it's 50 out. I have never seen that in any other auto befor. The dealer said it was normal????????? The truck has no power when it's cold even after I let it warm up for 10 to 15 min, strange
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