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Blower Motor Replacement
 
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Pelican Technical Article:

Blower Motor Replacement

Nick Czerula

Time:

3 hours3 hrs

Tab:

$200

Talent:

***

Tools:

Phillips screwdriver, T15, T25 Torx

Applicable Models:

Volvo V70 (1998-01)
Volvo V70 2.4T (2001)
Volvo V70 AWD (1998-99)
Volvo V70 GLT (1998-00)
Volvo V70 GLT SE (2000)
Volvo V70 R (1998)
Volvo V70 R AWD (1999-00)
Volvo V70 T5 (1998-01)
Volvo V70 X/C (2001)
Volvo V70 X/C AWD (1998-00)
Volvo V70 X/C AWD SE (2000)

Parts Required:

Blower motor

Hot Tip:

Be careful not to damage blower housing

Performance Gain:

Replace faulty blower motor

Complementary Modification:

Replace blower motor and resistor together

Volvo V70 vehicles are equipped with a climate control system with multiple sensors, controls, air temperature units and ducts. The blower motor that controls airflow into the passenger cabin is among the most consequential components in the climate control system. The blower motor resistor (or final stage) varies voltage to the blower motor to achieve the desired speed. The blower motor is a D/C electric motor driven by varying current supplied by the blower motor final stage unit.

If your blower motor fails, replace the blower and resistor together. You don't want to have to go back in if one fails later. Over time, a blower motor may become noisy as the motor electrical contacts wear. The blower fan cages also fracture, creating a vibration when the blower is ON. If it fails or becomes noisy, you can use this procedure for the repairs. Once the blower is removed, inspect the heater housing for debris. It can accumulate leaves, dirt and rodent build nests, all of which cause noise or a vibrating blower motor.

Remember that your car may have been serviced before and had parts replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

The blower motor blower motor resistor is located behind the right side of the dashboard and is serviced from the interior of the vehicle.

The blower motor (red arrow) that controls airflow into the passenger cabin is among the most consequential components in the climate control system.
Figure 1

The blower motor (red arrow) that controls airflow into the passenger cabin is among the most consequential components in the climate control system. The blower motor resistor (green arrow) (or final stage) varies voltage to the blower motor to achieve the desired speed. The blower motor is a D/C electric motor driven by varying current supplied by the blower motor final stage unit. Both of these components are located in the heater housing, behind the glove box.

Remove the glove box and lower kick panel.
Figure 2

Remove the glove box and lower kick panel. See our tech article on glove box replacement. Working at the right side of the blower motor, pull the wiring harness straight out. There is a Christmas tree style clip (green arrow). If stuck, use a trim panel tool to lever it out.

Working at the top left of the blower motor, pull the wiring harness housing (green arrow) straight off the mounting clip (red arrow).
Figure 3

Working at the top left of the blower motor, pull the wiring harness housing (green arrow) straight off the mounting clip (red arrow). Once removed, push it up and away from the blower motor.

Next, remove the blower motor electrical connector (green arrow).
Figure 4

Next, remove the blower motor electrical connector (green arrow). Pull the electrical connector straight out of the blower motor to remove it.

Working around the perimeter of the blower motor, remove the four T15 Torx fasteners.
Figure 5

Working around the perimeter of the blower motor, remove the four T15 Torx fasteners. Three of them can be accessed from below (green arrows). The top fastener (red arrow) is easier to get from the top.

Remove the blower motor from the heater housing (red arrow).
Figure 6

Remove the blower motor from the heater housing (red arrow). You will have to move the wiring out of the way as you feed the blower motor out of the heater housing.

Once the blower is removed, inspect the heater housing (green arrow) for debris.
Figure 7

Once the blower is removed, inspect the heater housing (green arrow) for debris. It can accumulate leaves, dirt and rodent build nests, all of which cause noise or a vibrating blower motor. Reverse the removal instructions for the blower installation. When installing the blower motor into the housing, be sure that the wiring is orientated as it was before. The motor will drop into the housing and sit evenly, with the ridge on the housing sitting inside the perimeter of the blower motor.





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