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Replace or flush the heater core

 
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Deezul_AwT
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PostPosted: Wed May 14, 2014 6:03 pm    Post subject:  Replace or flush the heater core Reply with quote

After doing a bit of work on my coolant system, including a flush, I still have an issue of "bubbling". It's coming from the heater core area. Heater core replacement sucks balls according to posts on here. So I'd like to try to back flush just the core. Are the hoses I'll need to disconnect right outside the firewall? And what is the easiest way to reach them? Underneath, or from the top?

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Totaled 9/19/2016 - 2004 Impala SS, Performance Car - ZZP ECM 1.0, 3.4" Pulley, K&N Cold Air Intake, TOG Headers, Random Technology Hi-Flow Cat, SLP Power-Flo Cat-Back Exhaust, Autolite 104s, PRJ Performance Ignition wires, GMPP Handling Kit
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Irish_alley
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1986 GMC Sierra
1994 Chevrolet Silverado
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1991 Chevrolet Silverado


PostPosted: Wed May 14, 2014 11:55 pm    Post subject:   Reply with quote

so you have bubbles in the heater core now? so your thinking replacing it (and opening up the system to more air) will fix this? you will be right back at where your at now

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Deezul_AwT
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PostPosted: Thu May 15, 2014 5:39 am    Post subject:   Reply with quote

Always had the bubbling. Never left after the flush.

_________________
2016 Ford Fusion Titanium Energi. Still trying to figure out what I can do with it...

2006 Mercury Mariner Hybrid. K&N Air filter. Can't do much else on a hybrid.

Totaled 9/19/2016 - 2004 Impala SS, Performance Car - ZZP ECM 1.0, 3.4" Pulley, K&N Cold Air Intake, TOG Headers, Random Technology Hi-Flow Cat, SLP Power-Flo Cat-Back Exhaust, Autolite 104s, PRJ Performance Ignition wires, GMPP Handling Kit
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Irish_alley
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2004 Chevrolet Impala
1986 GMC Sierra
1994 Chevrolet Silverado
1984 GMC Sierra
1979 Chevrolet Silverado
1991 Chevrolet Silverado


PostPosted: Thu May 15, 2014 6:28 am    Post subject:   Reply with quote

thats what im saying you have air trapped right now. if you replace the core you will still have air trapped in the new core

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"Racecar driving is like sex, all men think they are good at it. ď-Jay Leno

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Deezul_AwT
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2004 Chevrolet Impala


PostPosted: Thu May 15, 2014 7:06 am    Post subject:   Reply with quote

The heat is not working properly either. I have had it on full blast, and it's not much warmer than the out side air..

_________________
2016 Ford Fusion Titanium Energi. Still trying to figure out what I can do with it...

2006 Mercury Mariner Hybrid. K&N Air filter. Can't do much else on a hybrid.

Totaled 9/19/2016 - 2004 Impala SS, Performance Car - ZZP ECM 1.0, 3.4" Pulley, K&N Cold Air Intake, TOG Headers, Random Technology Hi-Flow Cat, SLP Power-Flo Cat-Back Exhaust, Autolite 104s, PRJ Performance Ignition wires, GMPP Handling Kit
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98ss
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2011 Chevrolet Silverado


PostPosted: Sat May 17, 2014 11:16 am    Post subject:   Reply with quote

If there are constant bubbles and no heat that is often a common sign of a head gasket gone bad. Have your coolant system checked for combustion gasses.
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