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Heating & Cooling 2nd Gen Dodge Ram Heating & Cooling Problems and Questions.


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  #1  
Old 01-05-2013, 07:45 PM
bmcashwell bmcashwell is offline
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Default Best Chemical to flush core?

I think my heater core is clogged, I"ve already done a clear water flush got nothing back. I've been reading several people have done the same and the core is clogged, with a few open passages. I'm thinking about doing a chemical flush to "eat" to the dirt out, any suggestions. Why? I've noticed I have no heat.... unless I hit 3k rpm so I'm thinking maybe the high pressure created by water pump is helping force more hot water through the core. Any suggestions on any other causes?
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Old 01-05-2013, 08:33 PM
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A chemical flush is worth a shot. If the inlet hose is hot and the outlet isn't, you surely have a clogged core. It's possible you may have a flow issue with the water pump although it's less likely.
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Old 01-05-2013, 10:50 PM
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you could pull your radiator & take it to someplace in your town like
http://harrellsauto.com/radiator-shop/
have them ROD it out
they pull off the tanks & run a rod through all the passages, when they are done, it will be close to new
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Old 01-05-2013, 10:57 PM
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I agree with that ^^^^ had it done on my last truck after nothing else worked. I'd start with a flush first. Prestone makes an easy to use flush that you can find at any parts store.

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Old 01-16-2013, 07:30 PM
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Default

The little electric motor under the vents wasn't attached properly, also bad vacuum check valve off the manifold and 2 cracked lines. $6 fix. Thanks though!
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