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2002 Dodge Ram

Tiny
THEHAT
  • MEMBER
  • 2002 DODGE RAM
  • V8
  • 2WD
  • AUTOMATIC
  • 77,650 MILES
My heater is blowing cold air and I do not know what the problem is.
Tuesday, September 1st, 2009 AT 8:32 AM

2 Replies

Tiny
JSWAIN
  • MEMBER
  • 24 POSTS
Thermostat is probably stuck open. I would replace thermostat. Follow upper heater hose to engine and you will find thermostat housing. Thermostat is underneath.
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Thursday, September 3rd, 2009 AT 9:16 PM
Tiny
F4I_GUY
  • MECHANIC
  • 3,302 POSTS
I wouldn't just replace the thermostat without testing it first.

Another possibility would be a clogged heater core that may need to be replaced or at the bare minimum, flushed.
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Thursday, September 3rd, 2009 AT 9:35 PM

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