Where is the blower motor resistor located on a 2003 GMC Envoy? The AC Blower Motor Resistor is located on
lower passenger side dash
and is easily accessible by removing a few screws.
Where is the blower motor resistor located at?
It's located
inside the dash
, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.
How do I know if my blower motor resistor is bad or blower motor?
- Fan does not work at all, so no air comes out of the vents.
- Fan only works on some speeds and not others.
- Fan only works on the highest speed.
- Fan runs all the time and can't be controlled with the fan switch.
- You see smoke coming out of the vents.
What happens when a blower motor resistor goes bad?
If the resistor shorts or fails,
it may cause the blower motor to remain stuck on one fan speed
. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.
Is a blower motor and a blower motor resistor the same thing?
The
blower motor IS the fan
. The blower motor resistor is what allows the fan to work at different speeds as opposed to just off and on.
How much does it cost to replace a blower motor resistor?
The average cost for a Blower Motor Resistor Replacement is
between $108 and $137
but can vary from car to car.
What are the signs of a bad blower motor relay?
If you have a faulty blower motor,
you may experience low airflow from the vents
, even when the fan is on high. There will be no air coming from the vents if your fan isn't working due to a bad blower motor resistor.
How do I know if my blower motor resistor is bad?
Place one lead of the Ohmmeter on terminal 1 of
the resistor. Place the other lead on terminal 2 and check against specifications. If this circuit is open, showing infinity on the Ohmmeter, the blower resistor must be replaced. Move the lead from terminal 2 to terminal 3 and check this reading against specifications.
Can you fix a blower motor resistor?
The resistor module is easy and inexpensive to replace. It's then typically installed in the ductwork, near the car blower—either under the dash or under the hood. (Refer to a service manual to locate yours.) Purchase a new resistor module at the auto parts store (usually less than $25).
What can cause a blower motor to stop working?
In a situation where the motor doesn't work on any speed, the most likely causes are:
a blown power supply fuse
, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely.
How much does it cost to replace a blower motor?
Replacing a blower motor costs
$450 on average
with a typical range of $250 to $800. With a warranty, you might pay as little as $150 for labor alone. For high-end models, like those with large motors or access issues, you might pay as much as $2,000.
Is there a fuse for the blower motor?
If the fan doesn't work, before pointing the finger at the blower motor, check fuses for the motor to make sure they're still good.
Many vehicles have two fuses
for the blower motor, one in the interior fuse block and the other under the hood. The blower motor is usually under the dashboard on the passenger side.
Can you test a blower motor resistor?
If you want to do a quick test of the blower resistor, you can check the resistance of each of the resistors with a
multimeter
as follows: set the tool to read ohms (a measurement of resistance) and connect one of its probes to the common output terminal of the resistor.
What does a bad blower motor sound like?
You might hear this as a noise coming from directly behind the vent, perhaps
a light slapping
, or a sudden pop before you notice a problem with airflow. Whirring noises might also result from a bad bearing in the motor. … This is a telltale sign of a bad blower motor.
How do you replace a blower motor resistor?
- Remove the negative battery terminal. …
- Locate the blower motor resistor on the passenger side under the dash board. …
- Disconnect the electrical connector to the blower motor resistor.
- Remove the screws or bolts to the blower motor resistor and remove the resistor.
