Heater not working?

SCOTTRWHITE

MEMBER
2007 CHRYSLER 300
3.5L
6 CYL
2WD
AUTOMATIC
185,000 MILES

The car has no heat! I replaced the thermostat and filled it with antifreeze and still have no heat. It does use a little antifreeze but doesn't leak and is not in oil and there is no white smoke coming out exhaust. I don't know why I have no heat. Do you think it's the blend door? Does it reset when I pull the fuse and put it back in?

Monday, January 29th, 2024 AT 6:53 AM

5 Replies

KEN L

MASTER CERTIFIED MECHANIC
50,348 POSTS

Yes, you can reset the HVAC system by pulling the fuse, this guide can help you. Pull fuse #14 in the right rear fuse panel for 5 minutes and then reinstall.

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every

If this doesn't work, then I would replace the temperature blend door actuator but first with the engine warm grasp both heater hoses to see if they are warm as well. Please go over this guide to help:

https://www.2carpros.com/articles/car-heater-not-working

here is the location of the actuator that controls the heat. Check out the images (below). Let us know how it goes.

Images (Click to make bigger)

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Monday, January 29th, 2024 AT 10:56 AM

SCOTTRWHITE

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5 POSTS

Thank you very much!I appreciate it!

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Monday, January 29th, 2024 AT 11:20 AM

SCOTTRWHITE

MEMBER
5 POSTS

Another question. What would cause foam in my reservoir 2007 Chrysler 300 3.5 L!Nothing but orange antifreeze has been put in it!Looks like foam off the top of root beer. Doesn't look like it could be oil. It's just pure white foam and a lot of it. Thanks for your expertise.

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Monday, January 29th, 2024 AT 11:38 AM

SCOTTRWHITE

MEMBER
5 POSTS

No one answered my question about foam in my reservoir! It looks like foam from root beer and nothing, but antifreeze has been added! It doesn't look like oil and no white smoke coming from exhaust!What could cause it!And it's a lot of foam!

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Tuesday, January 30th, 2024 AT 5:15 AM

KEN L

MASTER CERTIFIED MECHANIC
50,348 POSTS

You are welcome. Sorry, we only handle one problem per thread, please post your new question here, you must be logged in. I only see this question in your account?

https://www.2carpros.com/questions/new

Cheers, Ken

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Tuesday, January 30th, 2024 AT 10:15 AM