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I was wondering what everyone's temp is on there trucks. I got an 89 s10 Blazer 4.4 4x4. mine I think is running hot about 210-220. I was planning on changing the thermostat anyways. Also the radiator cap, and i know that I need to change the heater core. just curius how i am running. thanks!
 

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Normal temp is 180-190. Mine ran around 210 when the thermostat stuck half way.
 

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life begins @ 20 psi
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My truck runs around 160 degrees but, that's because I have a 160 degree 'stat... Cooler is definitely better. However, if you live in a part of the country that has emissions testing (like me) you may not pass with a cooler thermostat installed. Problem when your motor runs cooler is all the offending gases don't get burned as efficiently. I have a Stant 7 psi radiator cap too. Less than half the pressure to bleed to the overflow tank is easier on your radiator and hoses. HTH

Mike
 
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