Question about 1986 Nissan 300ZX

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1986 nissan 300zx a/c - heater blower motor will not work on any speed, it has power to blower motor and no ground, yet ac compressor comes on.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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pal03246
  • 726 Answers

SOURCE: Nissan Sentra 2001 Heater Blower motor only works

you need blower motor resistor

Posted on Feb 21, 2010

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  • 2039 Answers

SOURCE: ac heater

blower resistor ,fuses that the basic start let me now pierre

Posted on Nov 09, 2008

  • 82 Answers

SOURCE: AC blower motor resistor Nissan Maxima 2000

yeh its located under the passenger side glove box,its in the heater box beside the heater motor ,,2 scews hold it in and it looks like a credit card when its out,,,,

Posted on Apr 19, 2009

jeffbvegas1
  • 520 Answers

SOURCE: Can you tell me where the blower motor resistor is

those are located in the evaporator housing ...under or behind the glove box on the passenger side interior.Remove the glove box and you will go right to it...they are installed there to let the airflow keep them cool and from burning up

Posted on Jun 23, 2009

  • 701 Answers

SOURCE: what kind of motor is in a 1986 nissan 300zx non

Hello adeg222: My name is Roger and I will help you. The motor should be a 3.0 SOHC V-6 engine. The repair manual does not refer to this engine as being a interference engine. How ever if the belt breaks and you were driving the car. The likely hood of engine damage is greatly multiplied.Also the time called for to replace the belt is 8.5 hours.
Should you need further help please just ask. Please rate the quality of the answer. This way I know if it was helpful. Thank You for using Fix Ya. Roger

Posted on Dec 12, 2009

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A low freon level will cause the compressor to not operate by not grounding the relay. Some Nissans also use the heater motor resistor to make the relay operate. If your heater speeds do not function on all settings the resistor could be the problem

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There's a 10amp fuse that powers the ac clutch relay and compressor. There are 15amp fuses that power the blower motor and the ac control switch. All of those fuses get power from the key switch. The resistor and fan switch provide the ground circuit for the blower motor.
I would want to know if those fuses are getting power, and if the control panel is working. You should be able to ground the blower motor and make it run on high, and that should not have any effect on if the ac compressor is running or not.
It could be a key switch problem in that the circuit is not strong enough to handle the load from the blower and the compressor at the same time.

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The brown wire at the speed switch is the power wire. Powers is then directed to the blower motor resistor throught the orange, lt blue and yellows wires. The blower motor receives power through the orange wire. Check for power at the fuse with the key on. If there is no power the problem could be the ignition switch or the wiring in between the switch and the fuse block

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Aug 21, 2009 | 1986 Nissan 300ZX

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Oct 12, 2008 | 1986 Nissan 300ZX

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