Radiator Issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dznucks · 04-26-2007, 03:01 PM

i put a new larger radiator in my C-10 (350, no a/c, manual, no over flow res).
when i fill the radiator all the way up and drive the truck, the radiator will spill out some of the fluid. thats understandable. however it spills out so much that when i idle (ie. at a stop light) the engine will start to run hot. when i start riving again the temp immediately drops to normal.

Can anyone explain to me what is happeneing and why?

the hoses are new and the thermostat (190) is new.

04-26-2007, 03:01 PM	#1
dznucks Registered User Join Date: Feb 2006 Location: Smyrna, Ga Posts: 1,647	Radiator Issues i put a new larger radiator in my C-10 (350, no a/c, manual, no over flow res). when i fill the radiator all the way up and drive the truck, the radiator will spill out some of the fluid. thats understandable. however it spills out so much that when i idle (ie. at a stop light) the engine will start to run hot. when i start riving again the temp immediately drops to normal. Can anyone explain to me what is happeneing and why? the hoses are new and the thermostat (190) is new.



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