new radiator... still hot - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rickf · 09-13-2007, 11:57 AM

[QUOTE=63 & 64 Bowties;2356302]No thermostat at all will actually make your truck run hotter. Without the restriction of the thermostat's reduced size opening the coolant actually moves too fast and doesn't spend enough time in the radiator to cool like it should. QUOTE]

I've heard this before, understand the logic, and actually believe it.

The paradox is, when I was having cooling problems (before I put in the new radiator) I also took out the thermostat. The temp never got above 160.

So with a thermostat my old rad didn't cool enough, without it, it cooled too much.

09-13-2007, 11:57 AM	#24
rickf Registered User Join Date: Dec 2005 Location: Lake Oswego, OR Posts: 318	Re: new radiator... still hot [QUOTE=63 & 64 Bowties;2356302]No thermostat at all will actually make your truck run hotter. Without the restriction of the thermostat's reduced size opening the coolant actually moves too fast and doesn't spend enough time in the radiator to cool like it should. QUOTE] I've heard this before, understand the logic, and actually believe it. The paradox is, when I was having cooling problems (before I put in the new radiator) I also took out the thermostat. The temp never got above 160. So with a thermostat my old rad didn't cool enough, without it, it cooled too much.



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