Question about 2000 Chevrolet Blazer

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Replace a heater core in 2000 chevy blazer

Can I go through the glove box to replace my heater core?

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  • klais Apr 24, 2009

    how do I replace the heater core on my Chevy 2000 Blazer?

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It is located under the dashboard against the firewall of the passenger seat. i recomend buying a repair manual from your local auto parts store before attempting as it requires draining, flushing, refilling and bleeding the cooling system as well as removing many other componets like the entire dashboard and thermostat

Posted on Dec 01, 2008

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I need information on how to replace the heater core in a 1994 chevy tahoe blazer


This isn't as much a solution as it is a bandage.
But, I akso have a 94 Tahoe Blazer and my heater core was messed up, so I bypassed it. It was filling the cab with anti-freeze vapors, not good. So, I cut the two hoses coming from the heater core, (located right behind glove box under hood) one hose goes from this rounded black piece of metal to the radiator, and the other goes straight into the engine block. if you cut them at the place where they enter the engine from the glove box (area), and bind them together with a smaller metal flanged (on both sides) pipe, insert flanged edges inside each hose, and use the clamps that you tighten with a screwdriver on both sides of the bound hoses. (sorry, not mechanically savvy) So, when you're done, the hose from the radiator goes straight into the engine. It solved my leaky anti-freeze leak, and no more anti-freeze fumes! It's been 3.5 months and no problems have arisen with the two hoses bound together. Hope that helps!

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1988 Chevy Blazer Heater Core Replacement


I replaced mine and only took out the glove box.

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