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1999 S10 Chevy truck

Natalietrom on Oct 02, 2008

" "
How do I replace the heater core and where is it in the truck???
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Same Problem

Oct 19, 2008

-   no heat when heater is turned on.-   Guest

Solution #1

posted on Oct 02, 2008
Somewhat Helpful)

tripletauto

Rank: Guru  Chevrolet StaffChevrolet Staff
Rating: 89%, 574 votes
you will have to remove the dash assembly and then the heater/a/c box it is in the hvac module.
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Solution #2

posted on Jan 30, 2009
Not Rated)

dkuda

Rank: Apprentice 
Rating: 0%, 0 votes
You may not need to. I had the same problem. I had my heater core flushed. It had all kinds of black goo in it and now it works fine. I flush it myself about once a year now.
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