Question about 1997 Volkswagen Jetta

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Blower motor that feeds the air filter box comes on when the car is off and over time will kill the battery

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Sounds like the blower resistor for the motor. it is what controls the speed and when on high it has full voltage. one way to tell is the blower on high when the ar is off?

if not then you most likely have a issue with the heater / a/c control on the dash. if so you can unplug it to see if it stops and if so that will need to be replaced.

if you have any more issues or question please ask. good luck

Posted on Sep 26, 2009

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Is there a fuse for heater in 2001 d Taurus? where is fuses located?


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  1. Disconnect and isolate the negative battery cable, then wait 2 minutes before proceeding with the removal. This will effectively disable the air bag system preventing possible personal injury.
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How to replace a 2008 toyota prius blower motor


remove the bottom glove box. First open all the way. On the right side there is an attachment to an air shock. Support the glove box and pull the black ring attached to the glove box. On the left and right sides of the glove box you have plastic tabs that keep the glove box from falling out. Push them in simultaneously and pull gently in a downward direction until the glove box comes loose. Gently lift the backside of the glove box while slowly pulling towards you and the glove box should come out freely. This exposes the cabin air filter near the top and a black or grey foam pre-filter near the bottom. If you remove the cabin air filter you can see the blower motor inside. This is as far as I have gotten as I haven't found any instructions myself, but I think you need to pullout the pre-filter face plate and you might have to go underneath and remove the cover that is easy to remove. It is just snapped in so just pull edges slowly and remove the under cover. That will expose the blower motor resister that is plugged in at the bottom. You might have to remove the frame that holds in this component. I will revise when I get my new blower and install it.

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Air or heater front blower doesn't come on


Check the fuse for the blower. It may be the motor itself. A failed speed resistor will kill intermediate speeds, but full speed will still work. Pop the glove box out of the dash to access the motor--just just pull in the upper sides together which releases the box itself (not sure if there are hinges or just a pivot cavity). Hope this helps!

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How to replace a heater fan motor, is it changeable from the engine compartment?


No, but it isn't too hard to get to under dash. I will paste instructions from autozone.com below. Pictures may not come thru.

CAUTION The Supplemental Inflatable Restraint (SIR) system must be disarmed before removing the blower motor assembly. Failure to do so may cause accidental deployment of the air bag, resulting in unnecessary SIR system repairs and/or personal injury.
Front Blower Motor
See Figures 1, 2 and 3



0900c1528003c5cf.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: The blower motor is located behind the glovebox, behind the blower motor cover

  1. Disconnect and isolate the negative battery cable, then wait 2 minutes before proceeding with the removal. This will effectively disable the air bag system preventing possible personal injury.
  2. Remove the glove box from the instrument panel.
  3. Remove the A/C-heater blower motor cover.
  4. Disconnect the blower motor wiring connector.
  5. Remove the blower motor wiring grommet and feed the wiring through the blower motor housing.
  6. Remove the blower motor mounting screws.




0900c1528003c5d0.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Once the cover is removed, unplug the electrical connector and push it through the opening in the housing



0900c1528003c5d1.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 3: The blower motor is secured to the housing with three small screws

  1. Allow the blower motor assembly to drop downward to clear the instrument panel and remove from vehicle.

To install:
  1. Place the blower motor assembly into position on the A/C-heater unit and tighten the mounting screws.
  2. Route the blower motor wiring through the blower motor housing and seat the wiring grommet in the hole of the blower motor housing.
  3. Reconnect the blower motor electrical connector.
  4. Install the A/C-heater blower motor cover.
  5. Install the glove box into the instrument panel.
  6. Reconnect the negative battery cable. Check blower motor operation.

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1 Answer

My air is not blowing, the ac is working because what comes out when the car is moving is cold, but the fan/blower is not going. It happens intermittenly... When it happens, i've started the car and it...


Remove the glove box by removing the strut screw, then squeeze sides of glove box together the pull out glove box. look through the hole where the glove box usually sits, towards the top you will see a rectangular panel which can be removed with out tools. behind this panel is the cabin air filter. take note of the orientation of the filter before pulling it out so that you may re-install it the same way. blow out filter with compressed air or replace. You can hear if the fan is operating through the filter opening. If is not then pull the power plug off of the blower; it sits at the bottom of the air box assembly where the filter slides in. Check for power, No power? check fuse. Still no power then replace the blower relay. Yes power then replace the blower motor. if you need to replace the blower motor then remove the small shelf at the bottom of the dash; 3 plastic clips and pull forward- set it aside on the floor. 3 screws hold the blower in place- note location of plug. I would recommend replacing the AC clutch relay at this point because of a high failure rate. There is also the blower motor relay but if this goes out you loose one or more speeds but not all of them. All of these part are available from rockauto.com, very low cost.

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