Running too cold
#1
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Location: Ramona, CA
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Running too cold
I'm putting this in it's own thread since I haven't received much response when I posted this in my "It Runs!" thread.
I pulled the t-stat tonight just to verify that it is the correct part... it is a 180 degree t-stat. I also boiled some water to test it and it works exactly as it should (opens at 180). But, I still have not seen temps in the truck over 170 (at most) and most of the time it's right at 165. Should I be worried? Or is it just a combination of fresh coolant and the cooler weather (high of 70) we've been having lately? My truck had always run pretty cool, but not this cool.
Is my temp gauge bad?
Thanks.
~ Russ
I pulled the t-stat tonight just to verify that it is the correct part... it is a 180 degree t-stat. I also boiled some water to test it and it works exactly as it should (opens at 180). But, I still have not seen temps in the truck over 170 (at most) and most of the time it's right at 165. Should I be worried? Or is it just a combination of fresh coolant and the cooler weather (high of 70) we've been having lately? My truck had always run pretty cool, but not this cool.
Is my temp gauge bad?
Thanks.
~ Russ
#3
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You sure the gauge is right? Verify that with a seperate thermometer first.
Your thermostat might have a little too much leakby when it is closed. Replace the thermostat with a new one and see what happens.
Your thermostat might have a little too much leakby when it is closed. Replace the thermostat with a new one and see what happens.
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Originally Posted by Boatnik
You sure the gauge is right? Verify that with a seperate thermometer first.
Your thermostat might have a little too much leakby when it is closed. Replace the thermostat with a new one and see what happens.
Your thermostat might have a little too much leakby when it is closed. Replace the thermostat with a new one and see what happens.
Dumb question: How can I verify the accuracy of the gauge? Can't open up the cooling system while hot or with the truck running... can I?
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#9
I'd like to know if you ever got a good solution to this. The fan clutch is something I need to check. New thermostat didn't seem to help at all, the truck still runs really cold. I had my water pump grenade and keeping it easy was able to drive 25 miles without overheating. Keep in mind I live in MN and it was 20 degrees out when that happened. None the less I have to be driving none stop to keep the truck even in normal operating range, if I stop for 5 minutes I'm down to 140 or less. I did check the temp with a infrared too and the gauge is really close
#10
I'd like to know if you ever got a good solution to this. The fan clutch is something I need to check. New thermostat didn't seem to help at all, the truck still runs really cold. I had my water pump grenade and keeping it easy was able to drive 25 miles without overheating. Keep in mind I live in MN and it was 20 degrees out when that happened. None the less I have to be driving none stop to keep the truck even in normal operating range, if I stop for 5 minutes I'm down to 140 or less. I did check the temp with a infrared too and the gauge is really close
#11
i would put cardboard in front of my radiator to build heat, one day i bought a genuine Cummins thermostat and it works great now with no cardboard. the Cummins boxed stat was physically different than the one removed. the wife even thanked me for that. she drives it more than i do in the winter.
i am from SW Michigan, it gets cold here too.
i am from SW Michigan, it gets cold here too.
#13
if you dare, put it in gear with the parking brakes applied, it warms up 2X faster
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