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Heater Core odor?

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Re: Heater Core odor?

Post by abscate » Tue Jun 28, 2016 6:07 pm

I think they do wash out ok, and many have been happy with the part, so if you do take the part out, you can get rid of the problem pretty easily.
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Re: Heater Core odor?

Post by precopster » Thu Jun 30, 2016 6:01 pm

Yeah it was discouraging for me too!! Had postage been less than the cost of the heater core I would have claimed on the warranty.
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Re: Heater Core odor?

Post by scot850 » Thu Jun 30, 2016 11:10 pm

Try the hot burn off and then you could try one of the A/C cleaners through the system. They are like a grenade, you hit the top of the can and leave the engine idling for whatever the specified time, and hopefully you will have a fresher car afterwards.

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Re: Heater Core odor?

Post by Geevs » Sat Nov 05, 2016 3:45 pm

I installed the eBay heater core from *swedish*auto*lamps and unfortunately I didn't put through a dishwasher and now getting the funky smell. I evacuated all the old refrigerant from the AC system when I took out the engine from the car for a rebuild but did not refill the AC system when the engine went back in. Would an empty AC system compound the problem?

The smell is mildly nauseating - is it toxic? Had to drive with the windows down, vents closed, recirc ON and blower/AC OFF.

I would like to try the trick to run full heater with AC OFF for a prolonged period of time.

Thanks!

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Re: Heater Core odor?

Post by rspi » Sat Nov 05, 2016 7:40 pm

Geevs wrote:I installed the eBay heater core from *swedish*auto*lamps and unfortunately I didn't put through a dishwasher and now getting the funky smell. I evacuated all the old refrigerant from the AC system when I took out the engine from the car for a rebuild but did not refill the AC system when the engine went back in. Would an empty AC system compound the problem?

The smell is mildly nauseating - is it toxic? Had to drive with the windows down, vents closed, recirc ON and blower/AC OFF.

I would like to try the trick to run full heater with AC OFF for a prolonged period of time.

Thanks!
Was it one of the new "black" ones or the old cream colored ones? I usually was them with degreaser which seems to work fine.

It might be worth the hour that it takes to remove and clean it.
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Re: Heater Core odor?

Post by dorvin » Sat Nov 05, 2016 10:10 pm

I replaced my heater core with an aftermarket one last winter, and now that the cold is setting in finally this year, I'm still getting an odor for a minute or so after turning up the heat. It subsides fairly quickly, and I've just learned to live with it.

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Re: Heater Core odor?

Post by abscate » Sun Nov 06, 2016 5:22 am

The AC charge won't impact the heater core smell. I don't think anyone knows exactly what the residue is but car exhaust from the vehicle ahead of you is probably more dangerous
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Re: Heater Core odor?

Post by Geevs » Tue Sep 12, 2017 10:36 am

Hello again, it's been almost 9 months since my last post above and I'm still getting the funky smell during the first few minutes. I've run the heater and A/C system for half an hour in the beginning of the year and it did help a bit. I thought by now the smell would have been totally gone. I guess I will have to yank the core and give it a good wash. Dishwasher is not an option due to the missus. Any suggestions on how to give it a good wash by hand? Should I soak the entire core in a pan filled with all purpose cleaner for a few hours and then rinse? Which cleaner/degreaer did you use? Thanks!

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Re: Heater Core odor?

Post by gmh » Tue Sep 12, 2017 5:30 pm

Geevs wrote:
Tue Sep 12, 2017 10:36 am
Hello again, it's been almost 9 months since my last post above and I'm still getting the funky smell during the first few minutes. I've run the heater and A/C system for half an hour in the beginning of the year and it did help a bit. I thought by now the smell would have been totally gone. I guess I will have to yank the core and give it a good wash. Dishwasher is not an option due to the missus. Any suggestions on how to give it a good wash by hand? Should I soak the entire core in a pan filled with all purpose cleaner for a few hours and then rinse? Which cleaner/degreaer did you use? Thanks!
I used the powder that we use in the dishwasher in a bucket of really hot water and let it soak for a few hours.
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Re: Heater Core odor?

Post by kaneelschep » Wed Sep 13, 2017 12:58 pm

Strange.. I replaced mine 8000km ago with a nissens and it didnt stink at all..

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