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Heater blows cold

Tiny
GRAMPS325
  • MEMBER
  • 2002 CHRYSLER SEBRING
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 56,000 MILES
When the car is moving the heater works normally, hot air, temp can be controlled, etc.
When the car is stopped the heater almost immediately blows cold air. The fan is work fine, I can feel the airflow whether the car is stopped or moving.
Wednesday, January 23rd, 2008 AT 12:34 AM

32 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Find the thermostat and replace it and then come on back if needed.Also check to see if both heater hoses are hot when the car is sitting still/warmed up. If not you may have a partially restricted heater core that will only allow hot water through when the rpm's dare high enough to force it

Check out the guide below on heater issues, it will help

https://www.2carpros.com/articles/car-heater-not-working
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Wednesday, January 23rd, 2008 AT 5:07 AM
Tiny
FLRCARQUESTION
  • MEMBER
  • 1 POST
  • 2002 CHRYSLER SEBRING
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 50,000 MILES
The heater in my 02 convertible sterte blowing cold air then hot air and then cold air and continues. The heat is hot enough when its coming out but then teh cold air starts.
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Wednesday, January 23rd, 2019 AT 4:31 PM (Merged)
Tiny
EL345E
  • MEMBER
  • 3 POSTS
Try disconnecting your battery for about 10 min. This will reset the comuter to the factory setting.
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Wednesday, January 23rd, 2019 AT 4:31 PM (Merged)
Tiny
UNHOLY23
  • MEMBER
  • 2 POSTS
  • 2002 CHRYSLER SEBRING
My heater in my car will not heat up my car it only blows out cold air no matter how long I leave the car on. It does give heat only when the rpm goes above 3RMP. Its a 2002 chrysler sebring. Please help me. What could be the problem?
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
It could be low coolant level.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
UNHOLY23
  • MEMBER
  • 2 POSTS
That means nothing to me. I know nothing about cars could you explain a little better what needs to be done.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
The coolant in the radiator. Open the radiator cap and check the amount of coolant in there. If that isn't the problem, go to the Chysler service provider that takes care of the car and see if the issue can be resolved through them.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
POPPZ34
  • MEMBER
  • 1 POST
  • 2002 CHRYSLER SEBRING
Heater problem
2002 Chrysler Sebring 6 cyl Wheel Drive Type unknown Automatic 75000 miles

For some reason my car only seems to have heat while the car is actually moving, once I come to a stop sign or traffic light the heat begins to cool off and stay that way until I start driving again. I recently had overheating issues until I took it to a nearby shop where they said something about "air in the lines" and "vaporlocking". I paid them $40.00 and the car did just great for about two or three weeks. Now I have no steady heat. Although it's not overheating anymore. Please advise.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Its low on coolant
have it checked when engine cool
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
ARNIEDOWNEY
  • MEMBER
  • 1 POST
  • 2002 CHRYSLER SEBRING
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 81,000 MILES
Heater will not heat, the control set on high and blower works but no heat
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,870 POSTS
Assuming the engine is reaching normal temperature, feel the two heater hoses. They should be too hot to hold onto for very long. If not, remove the hoses at the engine and back flush the heater core with a garden hose.

Caradiodoc
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
LAURIANU
  • MEMBER
  • 1 POST
  • 2002 CHRYSLER SEBRING
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 67,000 MILES
Hi there I'd like some advice on a heat problem. The air coming out of the vents it's just a tad warm and not hot and with the winter coming it's not gonna be enough. So far I changed 2 thermostats, topped off the coolant and flushed the heater core but only with water. Besides changing the heater core what other ideas can you give me? Also what fluids can I use to flush again the heater core?
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the heater control valve and also the air blend door is its stuck on the cold position
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
NICOLE BEEBE
  • MEMBER
  • 1 POST
  • 2002 CHRYSLER SEBRING
Heater problem
2002 Chrysler Sebring V6 Front Wheel Drive Automatic 74000 miles

The heater in my car will only blow heat when I am driving it and I've noticed that it is very HOT. No heat when in park though. What do you think?
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
SEBALLR
  • MEMBER
  • 1 POST
I have the same thing happen to my 2002 Sebring LX at 50,000 miles. The heater blows hot air only when I press on the gas but cold air when coasting or stopped at the red light. I think I will be taking it in for service soon. Any ideas out there would certainly help. Thank you.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
CHRYSLERGUY
  • MEMBER
  • 2 POSTS
I had the saame problem in my o2 sebring, the problem was that one of the hoses on the rad came off and was leaking antifreeze
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
CRD5819
  • MEMBER
  • 3 POSTS
  • 2001 CHRYSLER SEBRING
  • V8
  • 2WD
  • AUTOMATIC
  • 12,000 MILES
Sebring convertible heater stops working when stopped at stop lights or any other time car is stopped. Works mediocre at best when car is in motion at a highways speed.

What is the problem and fix? What should it cost?
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
First off, check your coolant level.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
CRD5819
  • MEMBER
  • 3 POSTS
Since this si my girlfriend's car, that was my first thought as well. The coolant level was/is fine.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)
Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Nest is (with that many miles), I would suggest thermostat replacement. I know that you said the coolant level is good, but how good/effective is your coolant? Is the mixture is 50/50 or do you have more water than coolant, or too much coolant and not enough water. Use an antifreeze tester to check the strength of your coolant. Something like this one.


https://www.2carpros.com/forum/automotive_pictures/55316_af1420_1.jpg



Another thing you may want to experiment, try switching between "fresh air" and "recirculate".

If the heater core is plugging up, you may not get enough heat either. The next thing is to perform antifreeze flush and refill, including the heater core.

Let us know.
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Wednesday, January 23rd, 2019 AT 4:32 PM (Merged)

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