Question about 1991 Chevrolet Caprice

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How do i replace the fan blower motor - 1991 Chevrolet Caprice

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  • Disconnect the negative battery cable.
  • Disconnect the blower motor lead connector from the wiring harness connector.
  • Remove the blower motor cooling tube from the blower motor.
  • Remove the four retaining screws.
  • Turn the motor and the wheel assembly slightly to the right so that the bottom edge of the mounting plate follows the contour of the wheel well splash panel.
  • Lift up on the blower and remove it from the blower housing.
  • Installation the new blower motor by reversing the removal steps.
  • Connect the negative battery cable.
  • Posted on Jan 11, 2011

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    2004 crown vic. only 63K miles on her. AC/heat fan was sporadically working, now its done. AC was nice and cold, working fine. Is the fan a hard replacement if I were to find one at a parts yard?


    Try to check the power and ground on the blower fan. If you missing the ground on the blower fan connector than most likely it is the blower fan resistor (controller), it is located under the hood close to back firewall behind left cylinder head.

    Aug 17, 2015 | 2004 Ford Crown Victoria

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    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
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    does that have climate control ?
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    Apr 01, 2017 | 2000 Dodge Grand Caravan

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    I have only high speed on my ac/heat switch. have replace acdelco blower motor resistor 2 times already. works for a while and quits. whatelse do I need to check etc?.


    If you have replaced the blower motor resistor block twice all ready, i would be replacing the blower motor itself. When the blower motor is drawing too much current it burns out resistors for lower fan speeds in resistor block, but doesnt blow fuse for fan. Also check for leaves and stuff in fan when removing fan.

    Jul 18, 2011 | 2006 Isuzu i-280

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    Where is the fuse to the heater fan blower located in my 2005 Pontiac Grand Prix. Owners manual has 3 different fans. Is it the HVAC fuse or one of the 3 fans? The heater fan quit and want to check the...


    Hi, should be listed as heater blower motor not fans ,the fans is the ones in front of radiator. most common problems are the blower motor resistor, which is in passenger side compartment near fire wall.This is were your blower motor is also. You can check and see if its getting power to resistor, with a test light if power is at resistor, check and see if you are getting power at blower motor if no power there replace resistor. But if you have power at motor replace blower motor. If i can help further just re post. thanks

    Jan 05, 2011 | Pontiac Grand Prix Cars & Trucks

    1 Answer

    Heater fan works for a while then cuts off till it cools down




    What can go wrong with a blower motor?
    There are several things that may cause your blower motor to stop working. The simplest cause would be a blown fuse. If you replace the fuse and it quickly blows again, then you probably have an electrical short. Disconnected wires on the exterior of the blower motor can also cause it stop working, and if your blower motor gets dirty, it can get clogged or muddy which keeps the fan blades from spinning.

    How do I test my blower motor?
    When you are troubleshooting your blower motor, it is best to start by running the air conditioning or the heater to see if you can hear the sound of the fan. If you can hear the fan, it could be clogged or corroded with dirt. If you do not hear the fan, then you may have a bad resistor, blown fuse, or a loose wire. Next, you should replace any blown fuses in your car's fuse panel and try to start the blower motor again. If another fuse blows right away, you have an electrical short. If it doesn't blow out and the motor is still silent, then something else is wrong. In the case where the fuse lasts for a little while as the fan spins but then the fuse blows again, that usually means you need to replace the brushes on the motor. Finally, you can pull the motor out and visually inspect it for loose wires. If you don't see any and still want to test, try hooking it up to the battery to see if the motor will start. If all these tests still find you with a dead blower motor, it's definitely time to replace it.

    How do I replace it?
    Usually located under your vehicle's instrument panel, the blower motor can be removed and replaced. You'll need to disconnect the blower motor connector and remove the retaining screws holding it into place. Detach the fan retainer clip from the motor shaft that's located in the center of the blower wheel. You may need to save that piece if you are not replacing the whole motor. Inspect your new motor to ensure nothing is broken and the blades can properly spin. Re-attach the fan retainer clip, the retaining screws, and the connector so you can test your new blower motor out.

    Dec 13, 2010 | 2001 Chevrolet Silverado 1500

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    Where is the blower motor? heater in car dosent blow. not under hood, cant get through glover compartment.


    This work for 1998 Buick Century 3.1L SFI OHV 6cyl; the blower motor is a variable speed motor. The higher the voltage applied to the motor, the faster the speed. Depending on the HVAC (Heater Ventilation Air Conditioning) option installed in the vehicle, blower speed control could be through a set of resistors or through a solid-state blower motor control module.

    In general, this system is reliable. Because so many of the control operations are electronic, special diagnostic equipment really should be used for system diagnostics and check-out. An authorized technician using a scan tool can most quickly locate HVAC problems.

    zjlimited_78.jpg

    Fig. Typical behind-the-instrument panel view of HVAC related components. Depending on the HVAC option, not all components are used on all vehicles (click for zoom)

    zjlimited_79.jpg

    Fig. Typical HVAC operation schematic

    An inoperative blower motor could be caused by the following:

    * Blown fuse(s). The fuse should be replaced. There may be both a LOW BLOWER and HIGH BLOWER fuse. Some models may also call it the HVAC fuse. Even the RADIO fuse is used in some applications. Check them all. If a fuse is blown there may be a short to ground in one of the power supply circuits.
    * Open Circuit. Check the circuit between the ignition switch and the blower motor, and the blower motor ground circuit. Repair as necessary. * Faulty blower switch. A faulty blower switch should be replaced. * Most heater blower circuits also include a blower motor relay (look in the underdash convenience center), as well as a blow motor resistor. These items should be checked especially if the blower runs in one or two speeds, but not all speeds selected.

    REMOVAL & INSTALLATION

    1. Disconnect the negative battery cable.
    2. The blower motor is located on the passenger side of the vehicle, under the instrument panel. Remove the right side sound insulator (trim panel) by removing the retainers and disconnecting the courtesy lamp.
    3. Detach the blower motor electrical connector. Some applications may have cooling hose to the motor which should be disconnected.
    zjlimited_80.jpg

    Fig. Blower motor and fan assembly removal

    1. Unfasten the blower motor mounting screws, then remove the blower motor from the vehicle.
    2. If the blower motor fan (also called a 'squirrel cage') must be replaced, use the following procedure:
    NOTE Do not hammer on the motor to remove or install the fan. Do not apply force to the motor housing to seat the fan on the motor, or motor/shaft bearing damage could result. Do not apply pressure to the fan rim. Be sure the correct replacement part is used.
    1. Remove the metal star clip retaining the fan cage to the motor shaft.
    2. Remove the fan by pulling straight out.
    To install:
    1. If removed, install the blower motor fan, as follows:
      1. Install the replacement fan cage onto the motor shaft.
      2. Adjust the fan cage to get a clearance of 0.30 inch (7.5mm) to the motor mount plate.
    2. Install the remaining components in the reverse of the removal procedure. Make sure the electrical connection is secure. Tighten the motor screws to 14 ft. lbs. (20 Nm).
    3. Connect the negative battery cable, then test the blower motor for proper operations


    I hope this helps (remember to rate and comment this answer).

    Nov 17, 2010 | 1998 Buick Century

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    My 1988 Ford Tempo's heater fan is not working. I can feel heat at the windshield vents,but the fan wont come on. I have jumped the fan speed switch with a paper clip--and blew a fuse--and checked the...


    your circuit is simple--I will paste it below. suspect the blower has shorted and caused the switch to burn up. remove the blower and hotwire it to the battery to see if it works. If not, replace the blower. Then run continuity tests on the swoitch and replace switch if bad. If you have questions, please let me know. Here is procedure for taking blower out:


    REMOVAL & INSTALLATION With Air Conditioning

    1. Disconnect the negative battery cable.
    2. Remove the glove compartment door and glove compartment by removing the retaining screws and bolts. Push the sides of the glove box in to free the drawer from dash panel.
    3. Loosen the instrument panel at the lower right hand of the glove compartment opening. This is on it necessary if the panel is in the way of the motor housing.
    4. Remove the retaining screws securing the ducting around the blower motor.
    5. Remove the clip securing the blower motor fan blade to the motor arm. Remove the fan blade from the motor.
    6. Remove the blower motor mounting plate from the evaporator case by unscrewing the retaining screws.
    7. Rotate the motor until the mounting plate clears the edge of the glove compartment opening and remove the motor.
    8. Remove the wire harness from the rear of the motor.
    9. Inspect the fan blade for broken edges or cracks. Replace if needed.

    To install:
    1. Connect the wire harness to the rear of the blower motor.
    2. Install the motor into the case and secure with the retaining screws.
    3. Position and fasten the fan blade to the blower motor arm. Secure with the clip.
    4. Secure the blower motor outer housing to the duct assembly with the retaining screws.
    5. Install the instrument panel at the lower right hand side if removed earlier.
    6. Install the glove compartment door and glove compartment.
    7. Connect the negative battery cable.
    8. Run blower motors to make the motor works correctly.
    Without Air Conditioning
    1. Disconnect the negative battery cable.
    2. Remove the right ventilator assembly.
    3. Remove the hub clamp spring from the blower wheel hub. Pull the blower wheel from the blower motor shaft.
    4. Remove the blower motor flange attaching screws located inside the blower housing.
    5. Pull the blower motor out from the blower housing (heater case) and disconnect the blower motor wires from the motor.

    To install:
    1. Connect the wires to the blower motor and position the motor in the blower housing.
    2. Install the blower motor attaching screws.
    3. Position the blower wheel on the motor shaft and install the hub clamp spring.
    4. Install the air inlet duct assembly and the right ventilator assembly.
    5. Connect negative battery cab
    6. Check the system for proper operation.

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    Oct 21, 2010 | 1988 Ford Tempo

    1 Answer

    Need to replace ac/heater fan resistor I am not sure of the location does anyone know? Thank You


    The Blower Motor Resistor is located on the passenger side firewall, not far from your A/C's H-Valve (or expansion valve), going inside of the vehicle. The blower motor resistor has a 4 or 5 way black connector plugged into it and this is the only visible portion of the Resistor you will see. Remove the wiring connector and remove the 2 or 3 screws with an 8 mm or 5/16" socket (8 mm and 5/16" are the same). Once the screws or fasteners are removed, just pull the blower motor resistor out of the firewall and if you look at it, it will have various coils of wire on it, sometimes it will show burnt coils, but you can always check the various coils with an Ohm-meter.

    Aside from that, install the new Blower Motor Resistor and Voilà! Your inside Blower Motor should work just fine.

    A brief note here, if your fan doesn't work when the fan switch is on High, then it's not the Blower Motor Resistor, but possibly the Blower Motor itself. Should this occur, please get back to me insofar as how to replace the blower motor and why the blower motor's wires have to be twisted...even with the new blower motor fan.

    Best of Luck,

    "00 Buck"

    "Still living on the Right Side of Dirt..."

    Jun 05, 2010 | 2001 Dodge Caravan

    1 Answer

    19991 civic hatchback. Getting hot air but no


    There is a blower motor under the dash, behind glovebox. Loosen 3 retaining screws holding motor housing, drop motor housing and blower motor unit. Replace blower unit. The problem involves the blower resistor. This piece must be replaced but might be easier to replace the entire blower motor unit.

    Dec 30, 2009 | 1991 Honda Civic

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    MY HVAC fan stopped blowing. Checked all the


    Check the blower motor speed control resistor pack is ok.
    (The resistor pack is usually located in the blower fan ducting in the air flow).
    Check condition of electrical connection terminals on the blower motor circuit - these terminals pass considerable current and over time may fatigue overheat and loosen.
    Check operation/replace any blower motor control relay,
    Check the blower motor will run if +12v directly applied to the blower motor.
    Check operation of the blower motor speed control switch is ok.

    Oct 08, 2009 | 2003 GMC Sierra

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