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Blower motor is very intermittent - 2000 Mercury Grand Marquis

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2003 trailblazer blower not working


Are you saying the blower motor would run intermittently and then just stopped working? My first thought is faulty blower motor, I've seen faulty blower motors that would run intermittently. Any motor that uses brushes, you can tap on the motor to see if it will start working, that is a sign of bad motor brushes, replace the blower motor. There could be other issues?
Did you check the blower fuse, not only check the fuse, check the fuse circuit for voltage, use a test light. Check for applicable hvac trouble codes. With hvac on, check for voltage and ground at blower motor wiring connector, if both are good and no blower action, suspect the blower motor.
blower motor-ah4hlr42fk2bjlxp04hurvgv-3-0.jpg

May 13, 2017 | Cars & Trucks

1 Answer

Whar causes intermittent blower motor function Whar causes intermittent blower motor function On 1996 Olds 88


worn brushes an commutator inside blower motor . Videos on youtube showing how to diagnose blower motor and circuit !

Dec 16, 2016 | 1996 Oldsmobile 88

1 Answer

2002 grand caravan blower motor intermittent replaced resistor


in review
the fan speed resistor is new
you bench tested the blower motor
12 volts test ..only runs it at full speed
if cabin filer want changed the blower motor would run hotter

could be the motor brushes or bush/motor bearing when slowed
you might want to inspect the brushes and clean the dust out of the motor
if no better
does that have climate control ?
might be the fan switch itself or the earth isnt so good

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Apr 01, 2017 | 2000 Dodge Grand Caravan

1 Answer

HVAC Fan Blower Problem


sounds like the blower motor needs to be replaced.

Sep 05, 2012 | 2001 Lincoln Town Car

2 Answers

Heater fan not operating


Most of the time when a heater blower quits working it is the blower switch that fails rather than the motor. Blower switch can be accessed in the dash panel.

Feb 25, 2012 | 2004 Chrysler Pacifica

1 Answer

2001 T&C LXi - front blower fan is working intermittently


Hello! to answer your question; No...The intermittent operation is more than likely being caused by loose or oxidized contacts in the motor connector plug...Blower motor switch connector or the blower motor resistor plug...go to Radio Shack and purchase a product called DeOxit...cost $15...It's a two spray can package...A cleaner and contact protector spray...Cans are small you do not need much...Spray all three plugs; both male and female pins...You will notice a bubbling action...No wiping off...This is a no touch spray...This should clear up the problem...On the blower switch plug is a Black/Orange wire which goes to ground...Using an ohmmeter check this wire for zero ohms to ground...On the X10 scale...If you do not read zero ohms...The connection of this wire needs to go to bare metal chassis ground...

Guru...saailer

Feb 07, 2012 | Chrysler Town & Country Cars & Trucks

2 Answers

2005 Chevrolet Silverado - Fan not coming on. When I turn the heater/ac blower fan on, fan does not work. Prior to completely going out, fan would quit working intermittently. Is this a fuse problem? ...


Chk for power at the blower motor electrical connector. If no voltage, check the blower motor resistor, its within the blower motor vent (this controls power to the blower motor). Also, in theses vehicles water may have damaged the blower motor itself. Inspect the blower motor for proper function.

Aug 10, 2010 | 2005 Chevrolet Silverado 1500HD

1 Answer

Blower motor works intermittantly


Check the blower motor resistor module.It is by the blower motor on the passengers side under the dash.Check the connector for it getting hot and not making good contact.These resistors are known to go bad.Hope this helps.Good luck.

Mar 11, 2010 | 1999 GMC Yukon

1 Answer

Blower noisy on low speed,goes on and off intermittently.


Blower motor sounds like it is going bad and the bearings are giving you the noise. Motor going bad is the intermittent problems...bearings getting hot and motor is "reacting" to this.

Oct 18, 2009 | 2001 BMW 325

1 Answer

1997 Aurora intermittent blower motor


there is no resistor but it does have a digital fan control module located under the hood above the fan motor in the heater box. you will need to remove the plastic cover again the firewall.and the the module will be under the relays.

Oct 10, 2009 | 1995 Oldsmobile Aurora

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