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1996 4.3 blazer help please

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Old Mar 13, 2025 | 03:23 PM
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Default 1996 4.3 blazer help please

Has 161,000 miles I have noticed antifreeze leaking but can’t tell if it’s the intake or head gaskets. It’s coming from both sides. I presure tested but nothing that I can see. But definitely leaking. No water in oil or smoking. Please any advice would help.
 
Old Mar 13, 2025 | 04:15 PM
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Pressurizing the system with a tester may promote the leaking to identify the spot. Rinse the engine first and let it dry then pressure test cold engine off. Wipe around with white paper towels. Look around the heads, freeze plugs, hoses, heater core and water pump. If your still struggling try dye and a blacklight with the pressure tester. Lastly do a compression test.

George
 
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