The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Project 67 DRGNWGN

**kev2809** · 12-23-2022, 07:16 PM

so, I drained out all the coolant. pulled the upper hose, filled the water pump til it topped off. put the hose back on. filled the radiator. ran the truck with the cap off and it tops out at about 197 and holds. truck gauge reads almost all the way hot. my issue is still the same. upper hose does get warm, but lower hoses is cold. driver side tank is warm, passenger side cold... like the t stat isnt opening to allow coolant to flow THROUGH the radiator. truck doesn't over heat at all but I feel even at 197 the stat isnt opening. the thermostat is a new 187 degree stat. this is all driveway no open road testing. but my 2002 avalanche with a 5.3 gets to just at 210 no matter if it's sitting there or driving on the highway.

12-23-2022, 07:16 PM	#914
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,134	Re: Project 67 DRGNWGN - 67 Burban!! so, I drained out all the coolant. pulled the upper hose, filled the water pump til it topped off. put the hose back on. filled the radiator. ran the truck with the cap off and it tops out at about 197 and holds. truck gauge reads almost all the way hot. my issue is still the same. upper hose does get warm, but lower hoses is cold. driver side tank is warm, passenger side cold... like the t stat isnt opening to allow coolant to flow THROUGH the radiator. truck doesn't over heat at all but I feel even at 197 the stat isnt opening. the thermostat is a new 187 degree stat. this is all driveway no open road testing. but my 2002 avalanche with a 5.3 gets to just at 210 no matter if it's sitting there or driving on the highway. __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]