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Tow it to a mechanis and pay them $700-$1000 to do it. It sounds like a lot, but as someone who's worked on my Blazer a lot, this repair is not "do it yourself" freindly. You'll be taking off hte entire dash (took me 3 hours) and then searching indefinatly for random bolts that are all hard to get at (another 3-4 hours). Then you'll think you've found them all, and the heater core cover still won't come off (this is where I am now). I'm giving up now, so save yourself the hassle.

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โˆ™ 2008-02-13 21:32:57
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Q: How to replace heater core in 1998 Chevrolet blazer?
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