The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Overheating issue

tucsonjwt · 06-04-2016, 03:24 PM

I am assuming that the thermostat is open when checking the thermostat housing with an infra red thermometer. Removing the thermostat is not a bad idea to eliminate the thermostat element from the equation.

I got a compact Craftsman infra red thermometer for about $25 from Sears. Harbor Freight has full size thermometers for about the same price, but I think the quality might be questionable. I use that thermometer several times per year on one thing or another.

Checking temperature on various parts of the engine gives you an idea of where the problem might be. I think the exhaust manifolds and heads will always be hotter.

06-04-2016, 03:24 PM	#16
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,198	Re: Overheating issue - I am stumped! I am assuming that the thermostat is open when checking the thermostat housing with an infra red thermometer. Removing the thermostat is not a bad idea to eliminate the thermostat element from the equation. I got a compact Craftsman infra red thermometer for about $25 from Sears. Harbor Freight has full size thermometers for about the same price, but I think the quality might be questionable. I use that thermometer several times per year on one thing or another. Checking temperature on various parts of the engine gives you an idea of where the problem might be. I think the exhaust manifolds and heads will always be hotter.