How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Super Mechanic Your Own Question
Super Mechanic
Super Mechanic, Master technician
Category: Chevy
Satisfied Customers: 17220
Experience:  29 yrs. exp., ASE master, cert. in G.M. electrical, a/c, susspension, brakes, electronic steering
Type Your Chevy Question Here...
Super Mechanic is online now
A new question is answered every 9 seconds

2000 Chevrolet S10: pickup..heater/AC fan motor will blow..airflow

Resolved Question:

My 2000 Chevrolet S10 pickup (with 44000 miles), heater/AC fan motor will blow only in the MAX position. There is no airflow in any of the regular fan speed positions. What is the fix??
Submitted: 7 years ago.
Category: Chevy
Expert:  Super Mechanic replied 7 years ago.
Hello and welcome to Just, Super mechanic here. About your vehicle.

Do you have power coming out of the resistor in any speed besides high?

Customer: replied 7 years ago.
I don't know. I don't have a way to check voltage output. My son-in-law is an electrician and he can check it out. Can you give me options if there is and if there is not power coming out. Thanks for your help.
Expert:  Super Mechanic replied 7 years ago.
Sure. You should have power to the A, B and D in different blower positions. The terminal "C" goes through the relay to the blower motor. If there is power going into the resistor and not coming out, that would be the resistor. If there is no power to the resistor, that would most likely be the switch. If there is power to the relay, and not to the blower motor, then the problem is in the relay itself. Here is the diagram again, along with a test for that type of concern.


Super Mechanic and 4 other Chevy Specialists are ready to help you