Where is the resistor on my GMC Sierra?
The resistor is located under the passenger side glove box. You just remove the black plastic molding below it and then pop out of the old one and plug in the new one. But be warned that after you replace it, it’ll probably work for a couple days, weeks, months possibly a year and then go out again. My 2005 GMC Sierra has this problem as well.
Where is the blower resistor on a Chevy Silverado?
This is a very common problem on 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 and 2007 Chevrolet Silverado and GMC Sierra trucks. Over a period of time the resistor and usually the connector overheat and blower operation stops in some or all speeds. The blower resistor is located on the passenger side of the vehicle behind the glove box.
Why does my GMC heater not work on high?
1997 GMC C1500 Heater/AC blower will not work on HIGH. I have replaced the black BOSCH relay behind the glovebox, the blower RESISTOR and the blower MOTOR and still cannot get the blower to work on HIGH. I remember in older model years of GMC’s and Chevys that their was a high speed blower relay that caused this issue.
Is it possible that the resistor pack is bad?
There are numerous reasons why it won’t work and to automatically assume a resistor pack is the fault is not the way to diagnose an electrical problem. Besides, the OP states he has already replaced the resistor pack with a new one and high speed still does not operate. Could the new pack be bad? Yes; possible but not probable.
What are the symptoms of a failed blower motor resistor?
Blower motor resistor problems. Problems with a blower motor resistor are common in many cars. The most common symptom of a failed blower motor resistor is when the heater fan only runs at high speed and doesn’t work at low speeds.
Why is my blower not working on my GMC Sierra?
When you switch to high,the blower motor relay coil circuit is grounded and voltage is now applied directly through the relay to the blower motor; bypassing the resistors. So, I would look to see if the relay is ok. It is a five terminal relay.
Why is my GMC Envoy Denali not working?
This 2007 GMC Envoy Denali came in with the complaint that the blower motor would not work. The customer stated that they had removed the blower motor and connected it to battery voltage and ground. The blower motor worked under this condition. This vehicle also has auto temperature controls as indicated by a digital display.
The resistor is located under the passenger side glove box. You just remove the black plastic molding below it and then pop out of the old one and plug in the new one. But be warned that after you replace it, it’ll probably work for a couple days, weeks, months possibly a year and then go out again. My 2005 GMC Sierra has this problem as well.
Why is my blower motor resistor not working?
CLICK HERE TO RESET YOUR PASSWORD! Help! Fan quit working on all 4 speeds. AC light & recirc light still light up and AC compressor clutch engages when turning fan on in AC mode, but not getting the fan to work. I replaced the blower motor resistor and the control unit with new parts from rockauto (ACDelco).
When you switch to high,the blower motor relay coil circuit is grounded and voltage is now applied directly through the relay to the blower motor; bypassing the resistors. So, I would look to see if the relay is ok. It is a five terminal relay.
Why does my Ricks free auto blower motor not work?
A clogged cabin air filter reduces airflow through the ducts, increases current draw on the blower motor and can cause blower motor resistor overheating and premature failure. If you replace the resistor and it burns out again, check the current draw on the blower motor.