Flush The Heater Core???? - JeepForum.com
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post #1 of 4 Old 05-27-2008, 09:14 PM Thread Starter
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2002 TJ Wrangler 
Join Date: Apr 2007
Location: michigan
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Flush The Heater Core????

Im replacing the radiator and Im wondering if I should take the hoses off the water pump and flush the heater core with a garden hose. I dont wanna mess anything up with the core (core has 113k miles on it) I hear its not fun to replace
The heater works fine with no issues

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post #2 of 4 Old 05-27-2008, 11:04 PM
Jerry Bransford
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2004 TJ Wrangler 
Join Date: Jan 2003
Location: Escondido, California
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Heck why not, they build up crud inside so back-flushing it the opposite direction of normal flow is a very good idea. Might prevent your heater core from clogging next winter, not a great thing to happen there in Michigan.

When you have a choice, buy American made.
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post #3 of 4 Old 05-28-2008, 08:11 AM
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2006 LJ Wrangler 
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I'll be replacing a radiator and water pump on a friends Jeep this weekend too and was thinking of flushing the heater. Is it pretty obvious which hose to put the water in to "back flush" it?
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post #4 of 4 Old 05-28-2008, 11:51 AM Thread Starter
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flushed it, it wasnt that bad but there was some brown water
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