Question about 1991 Nissan Pickup

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Heater Switch The switch in my 91 nissan D21 pickup quit working. Warm and cold air come out regardless, it is like the fan quit. The fuses are all good,just the switch no longer turns on the air

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  • Nissan Master
  • 1,147 Answers

Switch could have burned out,but not likely.Use a hot and ground wire to the motor after unplug the wires to see if motor runs.First,after unplugging the motor,flip the switch on and check power on the plug with a test light.

Posted on May 14, 2014

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Posted on Jan 02, 2017

emissionwiz
  • 75744 Answers

SOURCE: fan for heater quit running on 2000 nissan Maxima

Run a 12 volt jumper lead to the fan motor connector from the battery or fuse box, if the fan runs replace the fan speed control module

Posted on Dec 01, 2008

  • 3 Answers

SOURCE: Fan Switch

it is the resistor pack that runs the blower motor it is shorted to the hi position

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: Heater blowing cold on 2005 Nissan Xterra

I live in Alaska and have had the same problem i just added more coolent to the radiator and it warmed up i installed a block heater and i leaked a bit and the coolent level got low and i would have no heat. I tryed to fill just the coolent resivoir and that dident work so i filled the radiator pumb full and that worked!! Hope this helps.

Posted on Jan 18, 2009

  • 36 Answers

SOURCE: my 1987 nissan d21 pickup wont turn over

Hi rvnut

This sounds like a connection problem. I would suggest cleaning your battery terminals and cables with a battery brush. If any corrosion is present, check in your cables at the cable ends to make sure the corrosion has not gone down into the cable itself. If it appears that it has, I would replace the cable or cables. After that make sure they are good and tight, give it a spin and see what happens. If it does not start, check for damage along both cables. Check all cables on the positive side all the way down to the starter and make sure the ground cable is good and that it's connection to the frame, or it's grounding point, are tight and clean. I hope this cures your problem, but if not, let me know and we'll go from there.

If your cables are heavily corroded and you can't get new cables, you can try a mixture of water and baking soda to pour on and into the cables, this will eat away most of the corrosion.

Posted on Feb 12, 2009

  • 120 Answers

SOURCE: 2005 nissan sentra-air stuck on defrostwont switch to floor or ve

vent door is stuck open

Posted on Feb 14, 2009

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