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Thermostat Debate!!!!!!!

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Old 06-16-2007, 10:02 PM
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I just look up in my PID's to see if i could log engine oil temp, doesn't have it. Can you log Enging Oil Temp with HPT?
Old 06-17-2007, 04:57 PM
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Never looked at the oil temps on a before and after on the thermostat. I wonder how much differance it does really make.
Old 06-17-2007, 05:44 PM
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why is everyone trying to run colder?
Gas cheap? Got too much power?
Old 06-17-2007, 05:44 PM
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Originally Posted by gmforlife
I just look up in my PID's to see if i could log engine oil temp, doesn't have it. Can you log Enging Oil Temp with HPT?
You CAN, we just dont have an engine oil temp sensor, which is a shame. I'd trade oil pressure for oil temp any day of the week.
Old 06-17-2007, 06:12 PM
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Originally Posted by treyZ28
You CAN, we just dont have an engine oil temp sensor, which is a shame. I'd trade oil pressure for oil temp any day of the week.
Yah ur tellin me. Sucks i can't get it on the scanner.
Old 06-18-2007, 05:33 PM
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Originally Posted by 2004Denali
when ever you buy a new T-stat take it home and put it in some water on the stove with a candy thermomitor, and than you can see exactly when it starts to open and when it is fully open
I do that with ones I dont even plan to use..... Gives me a good reason to put car parts on the stove... hahaha
Old 06-18-2007, 05:36 PM
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So what is the best way to get all the air out of the system after replacing the Tstat? I hate how they have the cooling system on these things.
Old 06-18-2007, 05:38 PM
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I usually just fill her up and go, and take a bottle of mix with me. Stop down the street, check coolant level, top off if necessary. Keep a close eye on coolant temps. Do that a few times till coolant temp stabilizes and check level again, them I'm good to go.
Old 06-18-2007, 06:13 PM
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Originally Posted by 03sierraslt
So what is the best way to get all the air out of the system after replacing the Tstat? I hate how they have the cooling system on these things.
I had to replace the thermostat on my mom's trailblazer (such a bitch) and she had major air in hers. One thing i have found out since i have done this a few times now, is to fill it up, run it, let it get hot so thermo opens, let it cool, overfill the overflow a little bit, squeze the top rad hose a few times, and let the truck sit over nite with the cap off the overflow, seems to work for me, the air seems to work itself out by the next day. It took like 2 days of cycling hot and cold and adding more coolant to get it to settle down.
Old 06-18-2007, 08:39 PM
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I've had good luck (on a few different manufacturers that are prone to air pockets), by squeezing either the upper and/or lower hose to "burp" air out of the system. I actually squeeze, hold, and sometimes shift the hose down or to the side. The reservoir will usually bubble and you can feel the coolant suck into the engine, then refill and repeat until the suction stops...it's kind of a "do by feel" sort of method that I've developed over the years that has given me about a 95% success rate.


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