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Posted on Mar 22, 2011

Heater doesn't work on 89 nissan sentra. fan works but no heat

5 Related Answers

Anonymous

  • 1010 Answers
  • Posted on Jun 29, 2008

SOURCE: 1996 nissan sentra

Find the big hose that comes out of the top of the radiator and follow it to the engine and that is where the thermostat is located. My advice is to be sure to get a factory thermostat and rubber gasket as it makes installation much easier. I have done it both ways and the factory one is easier to install.

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Anonymous

  • 59 Answers
  • Posted on Aug 12, 2008

SOURCE: The air conditioning,the blower fan

One suggestion. Have you checked the fuses ?

I would check the AC or blower fuse to start with. If you have the drivers manual it will show you where the fuse box is. Typically there are at least two boxes to check. One in the Engine compartment and one in the passenger cabin.

Look inside the lid of the fuse box to see which fuse may apply to the AC circuits or the blower and check to see if they are blow. the metal link between the two posts that plug in. If the link is missing you need to replace the fuse with one of the same rating. Make sure you know where you took the fuse out from and put it back in the same slot if its good. Check all the main fuses if possible to see if any have blown and replace if they have.

RALilja

Richard Lilja

  • 401 Answers
  • Posted on Dec 02, 2008

SOURCE: over heating. no heat from heater

Hello,
You need to replace the Thermostat and gasket very quickly as you are damaging the engine when it overheats. Your thermostat is not opening at all preventing the coolant from reaching the engine, cooling it off and sending the now heated coolant into the heater core to keep you warm. The shaking may or may not go away once this is fixed.

Good Luck!
Rich Lilja

Anonymous

  • 1 Answer
  • Posted on Mar 23, 2009

SOURCE: 2003 Nissan Sentra Problem overheating and heater doesn't work.

I had this exact problem a few weeks ago. The repair shop first changed the thermostat. Didn't fix the problem. Next step, they found the radiator was clogged. They replaced the radiator and now everything works fine.

Anonymous

  • 5 Answers
  • Posted on Nov 06, 2009

SOURCE: 97 Nissan Altima AC/heater fan only works on highest setting

Sounds like the blower resistor module needs to be replaced. Could also be the switch.

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