2001 Nissan Maxima Heater Blows Out Cold Air

2001 NISSAN MAXIMA
11,000 MILES
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RANDY77
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  • 3 POSTS
Nissan heater blows out cold air
Dec 6, 2011 at 8:16 PM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
The first thing i would check is if both heater hoses going to the heater core are getting really hot when the engine is fully warmed up.
Dec 6, 2011 at 8:23 PM
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RANDY77
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  • 3 POSTS
Sorry where's the heater core and heater hose located
Dec 6, 2011 at 8:31 PM
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SATURNTECH9
  • ✓Experienced Mechanic
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Base of the windshield follow that down towards the middle you will find two hoses going to the heater core.
Dec 6, 2011 at 8:35 PM
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RANDY77
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  • 3 POSTS
If they are cold and not hot what then
Dec 6, 2011 at 8:40 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
If cold there is no circulation, either a faulty heater tap or a blocked heater core.
Dec 7, 2011 at 3:23 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
If one is hot blocked restricted heater core if both is hot blend door issue or blend door control issue.
Dec 7, 2011 at 10:30 AM
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