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Where are the heater core hoses located

(1990 Chevrolet S10 Blazer)
in Covina, CA on March 23, 2010
where ae the heater core hoses located
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Popular Answer
on March 23, 2010
Usually located on the passenger side firewall, Two 1 inch outside diameter hoses going to the water pump area and intake manifold area
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on May 10, 2010
under hood passenger side by windshield
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