2001 Chevrolet Blazer 4 3 L Vortec Ve Blown 2 Different Radiators Flushed

2001 CHEVROLET BLAZER
119,000 MILES
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TRICK63
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2001 Blazer 4.3 L Vortec, I've blown 2 different radiators. I have flushed the system and the radiator cap is new as well. There is no water in my oil, but I was told it could be a cracked head or blown head gasket. I really need help with this guys, Thanks!!
Mar 10, 2013 at 12:29 PM
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JACOBANDNICKOLAS
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Try this... with the engine cold, remove the radiator cap and start the engine. Does coolant shoot out of the radiator?
Mar 10, 2013 at 12:37 PM
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TRICK63
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No Sir, No shouting fluid!
Mar 10, 2013 at 2:31 PM
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JACOBANDNICKOLAS
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I was thinking you had a bad head gasket that was pumping pressure into the cooling system. How many pounds of pressure is the release on the radiator cap?
Mar 10, 2013 at 5:50 PM
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TRICK63
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The cap seems to solid, no visible pressure release. I'm unsure as how to verify that it even has a pressure release. Is this something that this vehicle should have? I bought the cap from an auto supply store.
Mar 11, 2013 at 11:03 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
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They make testers for the caps that see if they release after a certain amount of pressure is reached.
Mar 11, 2013 at 5:27 PM
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