At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a 2000 chevy impala and need to replace the heater/air blower motor. The problem that I have is that the wiring harness is just the blow motor mount. There is not enough slack in the harness to drop the motor and mount straight down. What advice might you gave me?
Thanks for your reply.
ADS
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The blower motor relay is energized when the Blower Motor Control is set to the High position. This removes the blower motor resistors from the circuit and battery voltage is then applied directly from the HVAC BLO fuse (RH IP Accessory Wiring Junction Block) to the blower motor though the relay switch contacts. The blower motor then runs at high speed.
HVAC Blower Controls Circuit Description
The blower motor is a variable speed motor. The motor operates at a higher rate when voltage is increased to the maximum level.
The blower motor resistors reduce the voltage supplied from the A/C FAN fuse (LH IP Accessory Wiring Junction Block) when the blower control is set at low and medium speeds (speeds 1-4). The blower motor relay is energized when the Blower Motor Control is set to the High position. This removes the blower motor resistors from the circuit and battery voltage is then applied directly from the HVAC BLO fuse (RH IP Accessory Wiring Junction Block) to the blower motor though the relay switch contacts. The blower motor then runs at high speed.
the resistor to the blower motor is bad or the motor itself, the resistor should be right next to the blower fan a heavy gauge wire plugs into it, or it might even just be the wire, it is common for them to melt
If you can take the key out and the fan still blows air then that is a serious problem. the only way that can happen is if a relay or switch melted and stuck on or some wires in the wiring harness melted together. If disconnecting the battery is the only way to get it to stop, I would get a wiring diagram for that vehicle and start tracing out the heater wires.
It sounds like the blower resistor needs to be replaced and the blower motor it self. Auto Zone will have the blower and resistor that you need to replace and will have the step by step instructions for you to get the job done with common tools and will take about 2 hours if your good with tools. Good luck and keep me posted. Setting 5 should have 12 volts running to the blower motor so check the wire harness for voltage readings at the blower motor harness clip, you may only just need a new blower motor.
i just didf this last week
there is a part called (by most)
the fan/tempertire control module, it is located in the heater housing...where the air flows.....and a wire is connected to it from the blower motor and another wire exits the part.. chang this part...it is costly but autozone has the best price around 125$
×