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Discussion Starter #1
Do I need to remove the evap canister is I need to replace the heater core? Is there a way to leate the evap canister untouched?
If not is there a way to lock the AC so it does not leak in the environment or do I need to drain it to a specialist first
 

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Are we talking about the AC system or the heating system here ?
 

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Discussion Starter #4
Thank you for the question. We are talking about the heating system. Tha manual says that in order to get to the front heaeter core assembly you need to remove the evaporation canister. What I need to do is replace the front heater core but I do not want to disassemble the AC as the AC works fine.
 

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What year is your Pilot? There may be some differences between 2003-05 and 2006-08 which could impact the necessary steps. Personally I have not removed the heater core on my 2005 Pilot.

What is the reason you need to replace the heater core?
 

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Discussion Starter #6
What year is your Pilot? There may be some differences between 2003-05 and 2006-08 which could impact the necessary steps. Personally I have not removed the heater core on my 2005 Pilot.

What is the reason you need to replace the heater core?
The heat is not working and I flushed the radioator and heater core at honda the heat came on for 3 days and then disappeared again. They told me the heater core is gone and needs replacement 1800-2000$. Spending that much for a 2004 Pilot is not worth it so I thought to try myself.
 

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Do you get heat from the rear vents? There is a separate heater core back there.

Do you know if air was properly burped out of the cooling system after the flush? An air pocket in the front heater core could cause the issue your Pilot is experiencing.

If only the front heater core is not producing heat I would check the valve on the engine side of the firewall for proper operation when the temperature is adjusted. Search for a post from @plplplpl. Or perhaps he can post the link.
 

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You called? You wanted to hear my "You might have a screw loose" joke yet again? :)

133404



 

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Discussion Starter #9
I hoped it was that but unfortunately I replaced it and still the same issue. Now the only thing left is the heater core.
Thank you for the suggestion.

You called? You wanted to hear my "You might have a screw loose" joke yet again? :)

View attachment 133404


 
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