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Heater is not blowing hot, blows cold all day.

Tiny
RIPP9375
  • MEMBER
  • 2002 CHRYSLER SEBRING
  • 120,000 MILES
Heater is not blowing hot, blows cold all day long but no hot. Checked the blend door and actuators and they are fine. Hoses going into firewall are both hot. What is the problem?
Monday, January 28th, 2013 AT 3:56 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,703 POSTS
If the blend doors are working and the heater core is hot, you should have heat. Is the engine warming up to a normal operating temp?
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Monday, January 28th, 2013 AT 4:01 AM
Tiny
RIPP9375
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  • 4 POSTS
The heater core was not hot at all. The car overheated a few months ago and blew the motor. I had the motor switched out and havent got heat since.
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Monday, January 28th, 2013 AT 4:03 AM
Tiny
RIPP9375
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  • 4 POSTS
I had the radiator flushed when the motor was switched, could the sludge that was in the radiator be clogging the heater core? Or should I replace the heater core?
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Monday, January 28th, 2013 AT 4:04 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,703 POSTS
Yes it could. I would suggest flushing the heater core.
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Monday, January 28th, 2013 AT 4:07 AM
Tiny
RIPP9375
  • MEMBER
  • 4 POSTS
Can I do that or should I take it too a shop, what are the steps I need to take to do that on my own?
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Monday, January 28th, 2013 AT 4:08 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,703 POSTS
You can do it at home. The flush product you get should have directions. All you do is remove the heater core hoses at the firewall and spray high pressure water through each direction.
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Monday, January 28th, 2013 AT 4:20 AM

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