Question about 2001 Chevrolet Blazer

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Not sure how to get to Heater Core in 01 Chevy Blazer

Really dont know how to get to the heater core in my truck and my dad {who is a master mechanic and distict manager of manheim corp.} is not willing to help me lol...just wondering if there was any helpful advice that you could give me before i lay into this project.. anything that will make this quicker and more efficient would be great thanks

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Yes! watch video on youtube. I did the heater core last weekend and it really helped. BIG job, expect to take ENTIRE dash board off and them some. took me 7 hrs to get to the heater core and 5 to put back. LAST BOLT is in the HVAC against the engine compartment. CUT OUT the "cut out for service" diagram and the bolt inside. Super crappy. Good luck I did it, so you can too!!

Posted on Jan 15, 2011

  • howey porter Oct 31, 2015

    Before you want to replace a heater core try flush it out first. It may be blocked Disconnect hoses at fire wall and use garden hose and nozzle to flush the core.just might work savings on core and time


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Their is nothing either quick or easy to changeing a heater core. Most have to have all of the duct work from the AC and heater under the dash removed. The two hoses for the outside of the cowling to the core have to be removed. Some even have to have the floor board matts removed to have enough clearance  to take out the heater core. A really rough job. 

Posted on Jan 06, 2009


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