Cooling system

1969 CHEVROLET
168 MILES
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MACMAN 65
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  • 1 POST
I just changed the water pump on my 1969 Chevy C10 307 CID engine. Bled the system, refilled the radiator, cranked up and ran until temp went higher than 2/3's on the temp gauge. Upper hose and radiator are cool to touch. Lower hose is warm to hot to the touch. Radiator pressure is good. Why so quick to get hot temp reading?
Jun 28, 2012 at 7:09 PM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Maybe thermostat try this remove cap run till see water movement in radiator and top hose is warm. add coolant as needed
Jun 28, 2012 at 7:24 PM
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