heat

2003 NISSAN SENTRA
100,000 MILES • 4 CYL • FWD • AUTOMATIC
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MIKIEKAREN
  • MEMBER
  • 11 POSTS
I have 2003 Nissan Sentra ever since I had a new radiator put in I have no heat. I have replaced the thermostat, the electronic temp sensor, and flushed the entire cooling system. Any advice on why I have no heat? Could it be the heater core or freeze plug?
Feb 21, 2011 at 8:13 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If you had heat before, you should have it now. Check for air blocks in the system. Also, with the engine running, hot, and the heater on high, feel both heater core hoses. They should both be hot. If they are, check the blend air door. If only one is hot, flush the heater core and then bleed the cooling system to eliminate air blocks.
Apr 13, 2011 at 12:32 PM
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