How Do I Flush My Honda's Heater Core?

TroyK · Dec 31, 2008

hi i have a 1990 honda accord, and its winter time now and my heat is definitely not the greatest, i was wondering how to flush it the heatercore on it, or maybe if it needs replacing how hard of job is it, but in the summer i had a rad leak and i used this rad sealant, a few times, and eventually got a new rad, and now im thinking maybe some of that stuff is gunked up in there? would flushing it help, or, even just giving it a shot to see if it does work?

BB · Dec 31, 2008

Do you use Barr's stop leak or a similar product? If so you plugged the heater core.

Gently, carefully remove both hoses to/from the core. You can do this either at the core or at the block if it works better.

Using a garden hose with moderate water pressure, flush out the heater core. Watch what comes out.

replacing a heater core is a time consuming difficult job best left to a shop.

kelly_f_1999 · Dec 31, 2008

well truth you cant really flush it out once you put stop leak in it might try an dremove heater hoses but most like your going top be buying a heater core and some things they tough

How Do I Flush My Honda's Heater Core?

TroyK

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