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#1 Old 11-13-2013, 05:51 AM
DeMoN-HeMi
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Heater core flush

Im wanting to flush the heater core on my 06 2500 HEMI, anyone know what size hose goes to the heater core, id like to get a few long pieces to keep the mess under the hood down

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#2 Old 11-13-2013, 09:06 PM
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Thinking it might be 5/8" inside diameter?

I installed one of those "flush kit" Tees in my '99 and when it got brittle, I swapped it out for copper & brass, making my own T with small ball valves. I remember using 5/8" barb fittings at the Tee.

Kit I started with was Prestone one. Not expensive... just not long lasting! Maybe 2 years? Also had installed garden hose style couplings (had a T in both inlet & outlet of core hoses to flush either way) and used an old green garden hose I cut to lengths that would discharge to a 5 gallons bucket under the front.

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#3 Old 11-14-2013, 06:32 AM
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hmmm, ill look into that prestone kits, i think my local autoparts has them, i thought about just cutting the lines and using a double male adapter to put em back together when im done so that i could cut em right where they meet the frame

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2003 1500 HEMI QC -Slammed and Sprayed,
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2013 Charger - The Toy
1995 Camaro - The Project

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~> HOW TO - TINTING TAILS <~


~>IMPORTANT LED Replacement Bulb Info For 02-06 rams<~

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#4 Old 11-15-2013, 07:26 PM
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That would be just as easy, Sir! I liked have the T there so I could just screw on a short piece of hose and really cut down on the mess when opened up.

Also, I remember once adding the garden hose directly to one side and backflushing my core to a bucket...

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#5 Old 11-16-2013, 11:02 AM
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Why do you need to flush the heater core? Is that something that needs to be done periodically? Are you having an issue, or is this preventative?

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#6 Old 11-18-2013, 05:54 AM
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Originally Posted by Hemi Freak View Post
Why do you need to flush the heater core? Is that something that needs to be done periodically? Are you having an issue, or is this preventative?
mine isnt heating right and i suspect a dirty heater core

Official DodgeTalk Lighting/Wiring Expert & Retired Moderator- Daniel

2003 1500 HEMI QC -Slammed and Sprayed,
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2013 Charger - The Toy
1995 Camaro - The Project

"Dont Spread my Wealth, Spread my Work Ethic!"


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~> HOW TO - TINTING TAILS <~


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#7 Old 11-18-2013, 01:00 PM
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You wussy. You're in Texas. You don't need heat!


::2014 Ram 2500 CTD Crew Cab Granite Crystal Metallic::

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#8 Old 11-18-2013, 04:35 PM
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Originally Posted by 07MegaCabRam View Post
You wussy. You're in Texas. You don't need heat!
when it hits 32deg like it did last week you do lol, my kid and girl dont like a cold ride, ive gotten used to it haha

Official DodgeTalk Lighting/Wiring Expert & Retired Moderator- Daniel

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2013 Charger - The Toy
1995 Camaro - The Project

"Dont Spread my Wealth, Spread my Work Ethic!"


"Debt is normal, be WEIRD" - Dave Ramsey


~> HOW TO - TINTING TAILS <~


~>IMPORTANT LED Replacement Bulb Info For 02-06 rams<~

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#9 Old 11-18-2013, 05:42 PM
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Heat is over rated!! Just like A/C!! My 98 has the heater core completely disconnected and the A/C completely removed and I'm in Canada eh!! Lol

The last few times I drove it this year it wouldn't even unfog the windows. I had to keep wiping them off with a rag on the inside! Lol that was my sign to either fix it or park it.


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5.7 Hemi ,comp 260 cam, 87mm TB, 180* t-stat, EGR deleted, dual 14" electric fans, K&N cai, A/C deleted, diablo Intune 91 tune (custom tuning to come soon), sharadon stage 3 valve body, true duals with flowmaster super 44's and 70's challenger style tips, 4.10 gears, Detroit True-Trac, 3rd gen 20's, aftermarket 1pc headlights, LED tails/3rd brake lights, CREE LED reverse lights, blue LED dash, LED dome lights, LED strips in the box, red LEDs behind grill, 5% tinted windows, 2/4 drop, hard tonneau cover, BedRug box liner
15.01 @ 93.80mph

06 Ram 1500 QCSB 4x4
5.7 Hemi, superchips 91 tune, flowmaster super 40, leveled with bilstein 5100's, 5% tint all around, KC high lites behind the grill, CREE LED reverse lights, hard tonneau cover
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#10 Old 11-18-2013, 05:46 PM
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Oh and the heater core hoses are 5/8" I know that for a 100% fact from my swap.


98 Ram 1500 RCSB 2wd - 5.7 Hemi swapped
5.7 Hemi ,comp 260 cam, 87mm TB, 180* t-stat, EGR deleted, dual 14" electric fans, K&N cai, A/C deleted, diablo Intune 91 tune (custom tuning to come soon), sharadon stage 3 valve body, true duals with flowmaster super 44's and 70's challenger style tips, 4.10 gears, Detroit True-Trac, 3rd gen 20's, aftermarket 1pc headlights, LED tails/3rd brake lights, CREE LED reverse lights, blue LED dash, LED dome lights, LED strips in the box, red LEDs behind grill, 5% tinted windows, 2/4 drop, hard tonneau cover, BedRug box liner
15.01 @ 93.80mph

06 Ram 1500 QCSB 4x4
5.7 Hemi, superchips 91 tune, flowmaster super 40, leveled with bilstein 5100's, 5% tint all around, KC high lites behind the grill, CREE LED reverse lights, hard tonneau cover
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#11 Old 11-19-2013, 06:00 AM
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LOL thanks man!

Official DodgeTalk Lighting/Wiring Expert & Retired Moderator- Daniel

2003 1500 HEMI QC -Slammed and Sprayed,
2014 Ram 1500 Black on Black Edition HEMI! - The hauler
2013 Charger - The Toy
1995 Camaro - The Project

"Dont Spread my Wealth, Spread my Work Ethic!"


"Debt is normal, be WEIRD" - Dave Ramsey


~> HOW TO - TINTING TAILS <~


~>IMPORTANT LED Replacement Bulb Info For 02-06 rams<~

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